{"items":[{"id":"NVI-00003711","kind":"vulnerability","title":"Redaxo has a Mediapool isAllowedExtension bypass via multi-segment filename that leads to authenticated RCE on Apache mod_php multi-extension handlers","revision":4,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-98pp-vccm-qm25","CVE-2026-53599"],"plain_summary":"GitHub lists this reviewed advisory for redaxo/source. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-0ddd52f0347605146c5c9a9cff74ff0d"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 5.21.1 for redaxo/source. Confirm the publisher’s latest guidance.","source_ids":["sr-4824277867d4a126119b0b5aedb997f7"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-07-31T19:43:51.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-1852d0257119d64b66a64385e0822662"},{"kind":"CVSS","as_of":"2026-10-23T23:10:00.157Z","value":"7.5 HIGH (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-8fb276e832269618f70466ea67827eec"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.508%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.4343. Missing scores are unknown.","source_id":"sr-0ddd52f0347605146c5c9a9cff74ff0d"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-1852d0257119d64b66a64385e0822662","url":"https://github.com/advisories/GHSA-98pp-vccm-qm25","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-98pp-vccm-qm25","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:58:33.950Z"},{"id":"sr-4824277867d4a126119b0b5aedb997f7","url":"https://github.com/advisories/GHSA-98pp-vccm-qm25","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-98pp-vccm-qm25","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:10.683Z"},{"id":"sr-8fb276e832269618f70466ea67827eec","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53599","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-53599","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:24:31.710Z"},{"id":"sr-0ddd52f0347605146c5c9a9cff74ff0d","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-53599","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.282Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1852d0257119d64b66a64385e0822662"],"technology":"redaxo/source","known_exclusions":[],"conditions_summary":"## Summary\n \n`rex_mediapool::isAllowedExtension` in `redaxo/src/addons/mediapool/lib/mediapool.php` accepts filenames that contain a blocked extension as a non-terminal segment of a longer extension chain, for example `shell.php.any.jpg`. The check only catches the blocked extension when it appears at the end of the filename or immediately before the final extension. An authenticated backend user with mediapool upload permission can upload a JPEG/PHP polyglot named `shell.php.any.jpg` and, on web servers whose PHP handler matches `.php` as any segment (mod_mime `AddHandler`-style, or any `FilesMatch` regex without an end anchor), request the file from the public `media/` directory to execute arbitrary PHP as the web-server user.\n \nThe vulnerable check is a **regression** introduced in commit `9d008697d` (PR #6213, Feb 7 2025), which weakened a previously correct `str_contains` check into a pair of `str_ends_with` checks. The earlier check, in place since 2018 specifically to defend against double-extension attacks, would have blocked this payload.\n \nThe regression has shipped in every release from 5.1","public_affected_ranges":[">= 5.18.2, < 5.21.1"]},{"certainty":"source_listed","source_ids":["sr-4824277867d4a126119b0b5aedb997f7"],"technology":"redaxo/source","known_exclusions":[],"conditions_summary":"## Summary\n \n`rex_mediapool::isAllowedExtension` in `redaxo/src/addons/mediapool/lib/mediapool.php` accepts filenames that contain a blocked extension as a non-terminal segment of a longer extension chain, for example `shell.php.any.jpg`. The check only catches the blocked extension when it appears at the end of the filename or immediately before the final extension. An authenticated backend user with mediapool upload permission can upload a JPEG/PHP polyglot named `shell.php.any.jpg` and, on web servers whose PHP handler matches `.php` as any segment (mod_mime `AddHandler`-style, or any `FilesMatch` regex without an end anchor), request the file from the public `media/` directory to execute arbitrary PHP as the web-server user.\n \nThe vulnerable check is a **regression** introduced in commit `9d008697d` (PR #6213, Feb 7 2025), which weakened a previously correct `str_contains` check into a pair of `str_ends_with` checks. The earlier check, in place since 2018 specifically to defend against double-extension attacks, would have blocked this payload.\n \nThe regression has shipped in every release from 5.1","public_affected_ranges":["ECOSYSTEM: introduced 5.18.2; fixed 5.21.1"]}],"null_published_at":"2026-11-04T18:04:03.196Z","source_updated_at":"2026-07-31T19:43:51.000Z","source_disclosed_at":"2026-07-31T19:43:51.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:10.683Z"},{"id":"NVI-00003711","kind":"vulnerability","title":"Redaxo has a Mediapool isAllowedExtension bypass via multi-segment filename that leads to authenticated RCE on Apache mod_php multi-extension handlers","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-98pp-vccm-qm25","CVE-2026-53599"],"plain_summary":"GitHub lists this reviewed advisory for redaxo/source. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-0ddd52f0347605146c5c9a9cff74ff0d"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 5.21.1 for redaxo/source. Confirm the publisher’s latest guidance.","source_ids":["sr-4824277867d4a126119b0b5aedb997f7"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-07-31T19:43:51.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-1852d0257119d64b66a64385e0822662"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.508%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.4343. Missing scores are unknown.","source_id":"sr-0ddd52f0347605146c5c9a9cff74ff0d"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-1852d0257119d64b66a64385e0822662","url":"https://github.com/advisories/GHSA-98pp-vccm-qm25","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-98pp-vccm-qm25","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:58:33.950Z"},{"id":"sr-4824277867d4a126119b0b5aedb997f7","url":"https://github.com/advisories/GHSA-98pp-vccm-qm25","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-98pp-vccm-qm25","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:10.683Z"},{"id":"sr-0ddd52f0347605146c5c9a9cff74ff0d","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-53599","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.282Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1852d0257119d64b66a64385e0822662"],"technology":"redaxo/source","known_exclusions":[],"conditions_summary":"## Summary\n \n`rex_mediapool::isAllowedExtension` in `redaxo/src/addons/mediapool/lib/mediapool.php` accepts filenames that contain a blocked extension as a non-terminal segment of a longer extension chain, for example `shell.php.any.jpg`. The check only catches the blocked extension when it appears at the end of the filename or immediately before the final extension. An authenticated backend user with mediapool upload permission can upload a JPEG/PHP polyglot named `shell.php.any.jpg` and, on web servers whose PHP handler matches `.php` as any segment (mod_mime `AddHandler`-style, or any `FilesMatch` regex without an end anchor), request the file from the public `media/` directory to execute arbitrary PHP as the web-server user.\n \nThe vulnerable check is a **regression** introduced in commit `9d008697d` (PR #6213, Feb 7 2025), which weakened a previously correct `str_contains` check into a pair of `str_ends_with` checks. The earlier check, in place since 2018 specifically to defend against double-extension attacks, would have blocked this payload.\n \nThe regression has shipped in every release from 5.1","public_affected_ranges":[">= 5.18.2, < 5.21.1"]},{"certainty":"source_listed","source_ids":["sr-4824277867d4a126119b0b5aedb997f7"],"technology":"redaxo/source","known_exclusions":[],"conditions_summary":"## Summary\n \n`rex_mediapool::isAllowedExtension` in `redaxo/src/addons/mediapool/lib/mediapool.php` accepts filenames that contain a blocked extension as a non-terminal segment of a longer extension chain, for example `shell.php.any.jpg`. The check only catches the blocked extension when it appears at the end of the filename or immediately before the final extension. An authenticated backend user with mediapool upload permission can upload a JPEG/PHP polyglot named `shell.php.any.jpg` and, on web servers whose PHP handler matches `.php` as any segment (mod_mime `AddHandler`-style, or any `FilesMatch` regex without an end anchor), request the file from the public `media/` directory to execute arbitrary PHP as the web-server user.\n \nThe vulnerable check is a **regression** introduced in commit `9d008697d` (PR #6213, Feb 7 2025), which weakened a previously correct `str_contains` check into a pair of `str_ends_with` checks. The earlier check, in place since 2018 specifically to defend against double-extension attacks, would have blocked this payload.\n \nThe regression has shipped in every release from 5.1","public_affected_ranges":["ECOSYSTEM: introduced 5.18.2; fixed 5.21.1"]}],"null_published_at":"2026-11-03T17:49:18.458Z","source_updated_at":"2026-07-31T19:43:51.000Z","source_disclosed_at":"2026-07-31T19:43:51.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:42:10.683Z"},{"id":"NVI-00003711","kind":"vulnerability","title":"Redaxo has a Mediapool isAllowedExtension bypass via multi-segment filename that leads to authenticated RCE on Apache mod_php multi-extension handlers","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-98pp-vccm-qm25","CVE-2026-53599"],"plain_summary":"GitHub lists this reviewed advisory for redaxo/source. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-1852d0257119d64b66a64385e0822662"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 5.21.1 for redaxo/source. Confirm the publisher’s latest guidance.","source_ids":["sr-4824277867d4a126119b0b5aedb997f7"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-07-31T19:43:51.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-1852d0257119d64b66a64385e0822662"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-1852d0257119d64b66a64385e0822662","url":"https://github.com/advisories/GHSA-98pp-vccm-qm25","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-98pp-vccm-qm25","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:58:33.950Z"},{"id":"sr-4824277867d4a126119b0b5aedb997f7","url":"https://github.com/advisories/GHSA-98pp-vccm-qm25","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-98pp-vccm-qm25","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:10.683Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1852d0257119d64b66a64385e0822662"],"technology":"redaxo/source","known_exclusions":[],"conditions_summary":"## Summary\n \n`rex_mediapool::isAllowedExtension` in `redaxo/src/addons/mediapool/lib/mediapool.php` accepts filenames that contain a blocked extension as a non-terminal segment of a longer extension chain, for example `shell.php.any.jpg`. The check only catches the blocked extension when it appears at the end of the filename or immediately before the final extension. An authenticated backend user with mediapool upload permission can upload a JPEG/PHP polyglot named `shell.php.any.jpg` and, on web servers whose PHP handler matches `.php` as any segment (mod_mime `AddHandler`-style, or any `FilesMatch` regex without an end anchor), request the file from the public `media/` directory to execute arbitrary PHP as the web-server user.\n \nThe vulnerable check is a **regression** introduced in commit `9d008697d` (PR #6213, Feb 7 2025), which weakened a previously correct `str_contains` check into a pair of `str_ends_with` checks. The earlier check, in place since 2018 specifically to defend against double-extension attacks, would have blocked this payload.\n \nThe regression has shipped in every release from 5.1","public_affected_ranges":[">= 5.18.2, < 5.21.1"]},{"certainty":"source_listed","source_ids":["sr-4824277867d4a126119b0b5aedb997f7"],"technology":"redaxo/source","known_exclusions":[],"conditions_summary":"## Summary\n \n`rex_mediapool::isAllowedExtension` in `redaxo/src/addons/mediapool/lib/mediapool.php` accepts filenames that contain a blocked extension as a non-terminal segment of a longer extension chain, for example `shell.php.any.jpg`. The check only catches the blocked extension when it appears at the end of the filename or immediately before the final extension. An authenticated backend user with mediapool upload permission can upload a JPEG/PHP polyglot named `shell.php.any.jpg` and, on web servers whose PHP handler matches `.php` as any segment (mod_mime `AddHandler`-style, or any `FilesMatch` regex without an end anchor), request the file from the public `media/` directory to execute arbitrary PHP as the web-server user.\n \nThe vulnerable check is a **regression** introduced in commit `9d008697d` (PR #6213, Feb 7 2025), which weakened a previously correct `str_contains` check into a pair of `str_ends_with` checks. The earlier check, in place since 2018 specifically to defend against double-extension attacks, would have blocked this payload.\n \nThe regression has shipped in every release from 5.1","public_affected_ranges":["ECOSYSTEM: introduced 5.18.2; fixed 5.21.1"]}],"null_published_at":"2026-11-03T10:03:26.543Z","source_updated_at":"2026-07-31T19:43:51.000Z","source_disclosed_at":"2026-07-31T19:43:51.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:10.683Z"},{"id":"NVI-00003711","kind":"vulnerability","title":"Redaxo has a Mediapool isAllowedExtension bypass via multi-segment filename that leads to authenticated RCE on Apache mod_php multi-extension handlers","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-98pp-vccm-qm25","CVE-2026-53599"],"plain_summary":"OSV carries this publisher advisory for redaxo/source. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 5.21.1 for redaxo/source. Confirm the publisher’s latest guidance.","source_ids":["sr-4824277867d4a126119b0b5aedb997f7"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-4824277867d4a126119b0b5aedb997f7","url":"https://github.com/advisories/GHSA-98pp-vccm-qm25","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-98pp-vccm-qm25","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:10.683Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-4824277867d4a126119b0b5aedb997f7"],"technology":"redaxo/source","known_exclusions":[],"conditions_summary":"## Summary\n \n`rex_mediapool::isAllowedExtension` in `redaxo/src/addons/mediapool/lib/mediapool.php` accepts filenames that contain a blocked extension as a non-terminal segment of a longer extension chain, for example `shell.php.any.jpg`. The check only catches the blocked extension when it appears at the end of the filename or immediately before the final extension. An authenticated backend user with mediapool upload permission can upload a JPEG/PHP polyglot named `shell.php.any.jpg` and, on web servers whose PHP handler matches `.php` as any segment (mod_mime `AddHandler`-style, or any `FilesMatch` regex without an end anchor), request the file from the public `media/` directory to execute arbitrary PHP as the web-server user.\n \nThe vulnerable check is a **regression** introduced in commit `9d008697d` (PR #6213, Feb 7 2025), which weakened a previously correct `str_contains` check into a pair of `str_ends_with` checks. The earlier check, in place since 2018 specifically to defend against double-extension attacks, would have blocked this payload.\n \nThe regression has shipped in every release from 5.1","public_affected_ranges":["ECOSYSTEM: introduced 5.18.2; fixed 5.21.1"]}],"null_published_at":"2026-10-31T22:12:48.027Z","source_updated_at":"2026-07-31T20:11:44.529Z","source_disclosed_at":"2026-07-31T19:43:51.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:42:10.683Z"}],"next_cursor":null,"snapshot_revision":"42594"}