{"items":[{"id":"NVI-00007903","kind":"vulnerability","title":"YesWiki: Authenticated (Admin) Server-Side Template Injection to Remote Code Execution via Bazar Semantic Templates","revision":5,"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-65p8-9433-jpcp","CVE-2026-52762"],"plain_summary":"GitHub lists this reviewed advisory for yeswiki/yeswiki. 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-04f59af99376b56ae867212719132eba"],"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 4.6.6 for yeswiki/yeswiki. Confirm the publisher’s latest guidance.","source_ids":["sr-ed0fe5cd7fccfbf789416c968275a296"],"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":"2026-09-08T21:05:26.920Z","value":"7.1 HIGH (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-1e70c02d0e73422843dc4721de4890b4"},{"kind":"EPSS","as_of":"2026-11-03T12:00:27.000Z","value":"0.779%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.55951. Missing scores are unknown.","source_id":"sr-04f59af99376b56ae867212719132eba"}],"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-10b4590b489f4ba67bffcf2439c8e8b0","url":"https://github.com/advisories/GHSA-65p8-9433-jpcp","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-65p8-9433-jpcp","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T23:34:40.400Z"},{"id":"sr-ed0fe5cd7fccfbf789416c968275a296","url":"https://github.com/advisories/GHSA-65p8-9433-jpcp","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-65p8-9433-jpcp","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.930Z"},{"id":"sr-1e70c02d0e73422843dc4721de4890b4","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-52762","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-52762","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T22:35:42.883Z"},{"id":"sr-04f59af99376b56ae867212719132eba","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-2026-52762","publisher":"FIRST EPSS","observed_at":"2026-11-03T17:44:07.787Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-10b4590b489f4ba67bffcf2439c8e8b0"],"technology":"yeswiki/yeswiki","known_exclusions":[],"conditions_summary":"### Summary\nYesWiki Bazar contains a stored Server-Side Template Injection (`SSTI`) vulnerability in the semantic template feature that can be escalated to confirmed Remote Code Execution (`RCE`). An authenticated administrator can place arbitrary Twig expressions into the `Semantic template (Twig)` field (`bn_sem_template`), and that content is later executed server-side when public semantic endpoints are requested.\n\nThis was first confirmed through a harmless proof payload where `{{ 7 * 7 }}` was rendered as `49` through the public JSON-LD endpoint. The finding was then further validated locally by storing a Twig payload that invoked a system-level callable, resulting in command execution and an interactive shell on the test machine.\n\nBecause the payload is stored in the form configuration and later triggered through a public endpoint, this issue is both persistent and remotely triggerable after an administrator plants the malicious template.\n\n### Details\nThe vulnerable behavior is in the Bazar semantic rendering flow.\n\nThe administrator-editable fields:\n\n- `bn_sem_template`\n- `bn_sem_reverse_template`\n\nallow Twig template content to be stored inside a form definition. That conte","public_affected_ranges":["< 4.6.6"]},{"certainty":"source_listed","source_ids":["sr-ed0fe5cd7fccfbf789416c968275a296"],"technology":"yeswiki/yeswiki","known_exclusions":[],"conditions_summary":"### Summary\nYesWiki Bazar contains a stored Server-Side Template Injection (`SSTI`) vulnerability in the semantic template feature that can be escalated to confirmed Remote Code Execution (`RCE`). An authenticated administrator can place arbitrary Twig expressions into the `Semantic template (Twig)` field (`bn_sem_template`), and that content is later executed server-side when public semantic endpoints are requested.\n\nThis was first confirmed through a harmless proof payload where `{{ 7 * 7 }}` was rendered as `49` through the public JSON-LD endpoint. The finding was then further validated locally by storing a Twig payload that invoked a system-level callable, resulting in command execution and an interactive shell on the test machine.\n\nBecause the payload is stored in the form configuration and later triggered through a public endpoint, this issue is both persistent and remotely triggerable after an administrator plants the malicious template.\n\n### Details\nThe vulnerable behavior is in the Bazar semantic rendering flow.\n\nThe administrator-editable fields:\n\n- `bn_sem_template`\n- `bn_sem_reverse_template`\n\nallow Twig template content to be stored inside a form definition. That conte","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 4.6.6"]}],"null_published_at":"2026-11-05T19:10:21.402Z","source_updated_at":"2026-07-09T20:54:24.000Z","source_disclosed_at":"2026-07-09T20:54:23.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:41:59.930Z"},{"id":"NVI-00007903","kind":"vulnerability","title":"YesWiki: Authenticated (Admin) Server-Side Template Injection to Remote Code Execution via Bazar Semantic Templates","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-65p8-9433-jpcp","CVE-2026-52762"],"plain_summary":"OSV carries this publisher advisory for yeswiki/yeswiki. 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 4.6.6 for yeswiki/yeswiki. Confirm the publisher’s latest guidance.","source_ids":["sr-ed0fe5cd7fccfbf789416c968275a296"],"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},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-04f59af99376b56ae867212719132eba"],"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}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-09-08T21:05:26.920Z","value":"7.1 HIGH (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-1e70c02d0e73422843dc4721de4890b4"},{"kind":"EPSS","as_of":"2026-11-03T12:00:27.000Z","value":"0.779%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.55951. Missing scores are unknown.","source_id":"sr-04f59af99376b56ae867212719132eba"}],"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-ed0fe5cd7fccfbf789416c968275a296","url":"https://github.com/advisories/GHSA-65p8-9433-jpcp","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-65p8-9433-jpcp","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.930Z"},{"id":"sr-1e70c02d0e73422843dc4721de4890b4","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-52762","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-52762","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T22:35:42.883Z"},{"id":"sr-04f59af99376b56ae867212719132eba","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-2026-52762","publisher":"FIRST EPSS","observed_at":"2026-11-03T17:44:07.787Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-ed0fe5cd7fccfbf789416c968275a296"],"technology":"yeswiki/yeswiki","known_exclusions":[],"conditions_summary":"### Summary\nYesWiki Bazar contains a stored Server-Side Template Injection (`SSTI`) vulnerability in the semantic template feature that can be escalated to confirmed Remote Code Execution (`RCE`). An authenticated administrator can place arbitrary Twig expressions into the `Semantic template (Twig)` field (`bn_sem_template`), and that content is later executed server-side when public semantic endpoints are requested.\n\nThis was first confirmed through a harmless proof payload where `{{ 7 * 7 }}` was rendered as `49` through the public JSON-LD endpoint. The finding was then further validated locally by storing a Twig payload that invoked a system-level callable, resulting in command execution and an interactive shell on the test machine.\n\nBecause the payload is stored in the form configuration and later triggered through a public endpoint, this issue is both persistent and remotely triggerable after an administrator plants the malicious template.\n\n### Details\nThe vulnerable behavior is in the Bazar semantic rendering flow.\n\nThe administrator-editable fields:\n\n- `bn_sem_template`\n- `bn_sem_reverse_template`\n\nallow Twig template content to be stored inside a form definition. That conte","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 4.6.6"]}],"null_published_at":"2026-11-04T10:04:41.545Z","source_updated_at":"2026-07-09T21:11:39.032Z","source_disclosed_at":"2026-07-09T20:54:23.000Z","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":"2026-10-31T21:41:59.930Z"},{"id":"NVI-00007903","kind":"vulnerability","title":"YesWiki: Authenticated (Admin) Server-Side Template Injection to Remote Code Execution via Bazar Semantic Templates","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-65p8-9433-jpcp","CVE-2026-52762"],"plain_summary":"OSV carries this publisher advisory for yeswiki/yeswiki. 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 4.6.6 for yeswiki/yeswiki. Confirm the publisher’s latest guidance.","source_ids":["sr-ed0fe5cd7fccfbf789416c968275a296"],"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},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-a5f6ba24d089a2cdad00b41ad30765ad"],"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}],"schema_version":"1.1.0","source_metrics":[{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.779%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.55917. Missing scores are unknown.","source_id":"sr-a5f6ba24d089a2cdad00b41ad30765ad"}],"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-ed0fe5cd7fccfbf789416c968275a296","url":"https://github.com/advisories/GHSA-65p8-9433-jpcp","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-65p8-9433-jpcp","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.930Z"},{"id":"sr-a5f6ba24d089a2cdad00b41ad30765ad","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-2026-52762","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.382Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-ed0fe5cd7fccfbf789416c968275a296"],"technology":"yeswiki/yeswiki","known_exclusions":[],"conditions_summary":"### Summary\nYesWiki Bazar contains a stored Server-Side Template Injection (`SSTI`) vulnerability in the semantic template feature that can be escalated to confirmed Remote Code Execution (`RCE`). An authenticated administrator can place arbitrary Twig expressions into the `Semantic template (Twig)` field (`bn_sem_template`), and that content is later executed server-side when public semantic endpoints are requested.\n\nThis was first confirmed through a harmless proof payload where `{{ 7 * 7 }}` was rendered as `49` through the public JSON-LD endpoint. The finding was then further validated locally by storing a Twig payload that invoked a system-level callable, resulting in command execution and an interactive shell on the test machine.\n\nBecause the payload is stored in the form configuration and later triggered through a public endpoint, this issue is both persistent and remotely triggerable after an administrator plants the malicious template.\n\n### Details\nThe vulnerable behavior is in the Bazar semantic rendering flow.\n\nThe administrator-editable fields:\n\n- `bn_sem_template`\n- `bn_sem_reverse_template`\n\nallow Twig template content to be stored inside a form definition. That conte","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 4.6.6"]}],"null_published_at":"2026-11-04T02:53:03.190Z","source_updated_at":"2026-07-09T21:11:39.032Z","source_disclosed_at":"2026-07-09T20:54:23.000Z","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":"2026-10-31T21:41:59.930Z"},{"id":"NVI-00007903","kind":"vulnerability","title":"YesWiki: Authenticated (Admin) Server-Side Template Injection to Remote Code Execution via Bazar Semantic Templates","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-65p8-9433-jpcp","CVE-2026-52762"],"plain_summary":"OSV carries this publisher advisory for yeswiki/yeswiki. 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 4.6.6 for yeswiki/yeswiki. Confirm the publisher’s latest guidance.","source_ids":["sr-ed0fe5cd7fccfbf789416c968275a296"],"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-ed0fe5cd7fccfbf789416c968275a296","url":"https://github.com/advisories/GHSA-65p8-9433-jpcp","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-65p8-9433-jpcp","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.930Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-ed0fe5cd7fccfbf789416c968275a296"],"technology":"yeswiki/yeswiki","known_exclusions":[],"conditions_summary":"### Summary\nYesWiki Bazar contains a stored Server-Side Template Injection (`SSTI`) vulnerability in the semantic template feature that can be escalated to confirmed Remote Code Execution (`RCE`). An authenticated administrator can place arbitrary Twig expressions into the `Semantic template (Twig)` field (`bn_sem_template`), and that content is later executed server-side when public semantic endpoints are requested.\n\nThis was first confirmed through a harmless proof payload where `{{ 7 * 7 }}` was rendered as `49` through the public JSON-LD endpoint. The finding was then further validated locally by storing a Twig payload that invoked a system-level callable, resulting in command execution and an interactive shell on the test machine.\n\nBecause the payload is stored in the form configuration and later triggered through a public endpoint, this issue is both persistent and remotely triggerable after an administrator plants the malicious template.\n\n### Details\nThe vulnerable behavior is in the Bazar semantic rendering flow.\n\nThe administrator-editable fields:\n\n- `bn_sem_template`\n- `bn_sem_reverse_template`\n\nallow Twig template content to be stored inside a form definition. That conte","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 4.6.6"]}],"null_published_at":"2026-10-31T22:13:18.640Z","source_updated_at":"2026-07-09T21:11:39.032Z","source_disclosed_at":"2026-07-09T20:54:23.000Z","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":"2026-10-31T21:41:59.930Z"}],"next_cursor":null,"snapshot_revision":"42594"}