{"items":[{"id":"NVI-00004851","kind":"vulnerability","title":"Remote Code Execution vulnerability in PHPMailer 6.4.1 running on Windows","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-7q44-r25x-wm4q","CVE-2021-34551"],"plain_summary":"OSV carries this publisher advisory for phpmailer/phpmailer. 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 6.5.0 for phpmailer/phpmailer. Confirm the publisher’s latest guidance.","source_ids":["sr-7618e8b1310fb7103b1aac370ac36c36"],"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-3b156a496ce15a288fdf9a74fdadf735"],"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":"2026-11-01T12:00:16.000Z","value":"2.803%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.86484. Missing scores are unknown.","source_id":"sr-3b156a496ce15a288fdf9a74fdadf735"}],"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-7618e8b1310fb7103b1aac370ac36c36","url":"https://github.com/advisories/GHSA-7q44-r25x-wm4q","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-7q44-r25x-wm4q","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.953Z"},{"id":"sr-3b156a496ce15a288fdf9a74fdadf735","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-2021-34551","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:27:48.610Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7618e8b1310fb7103b1aac370ac36c36"],"technology":"phpmailer/phpmailer","known_exclusions":[],"conditions_summary":"PHPMailer 6.4.1 contains a possible remote code execution vulnerability through the `$lang_path` parameter of the `setLanguage()` method. If the `$lang_path` parameter is passed unfiltered from user input, it can be set to a UNC path, and if an attacker is also able to create a remote mount on the server that the UNC path points to, a script file under their control may be executed. \n\n### Impact\nArbitrary code may be run by a remote attacker under the web server or PHP process running on Window hosts.\n\n### Patches\nMitigated in PHPMailer 6.5.0 by no longer treating translation files as PHP code, but by parsing their text content directly.\nThis approach avoids the possibility of executing unknown code while retaining backward compatibility. This isn't ideal, so the current translation format is deprecated and will be replaced in the next major release.\n\n### Workarounds\nAny of:\n* Ensure that calling code does not pass unfiltered user-supplied data to the `$lang_path` parameter of the `setLanguage()` method.\n* Block or filter the use of unknown UNC paths in this parameter (or altogether).\n* Ensure that u","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 6.5.0"]}],"null_published_at":"2026-11-08T19:53:48.760Z","source_updated_at":"2024-02-17T05:31:56.638Z","source_disclosed_at":"2021-06-22T15:17:51.000Z","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":"2026-10-31T21:41:59.953Z"},{"id":"NVI-00004851","kind":"vulnerability","title":"Remote Code Execution vulnerability in PHPMailer 6.4.1 running on Windows","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-7q44-r25x-wm4q","CVE-2021-34551"],"plain_summary":"OSV carries this publisher advisory for phpmailer/phpmailer. 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 6.5.0 for phpmailer/phpmailer. Confirm the publisher’s latest guidance.","source_ids":["sr-7618e8b1310fb7103b1aac370ac36c36"],"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-7dbf0d058468747a21a629ef356a67e1"],"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":"2.803%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.86483. Missing scores are unknown.","source_id":"sr-7dbf0d058468747a21a629ef356a67e1"}],"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-7618e8b1310fb7103b1aac370ac36c36","url":"https://github.com/advisories/GHSA-7q44-r25x-wm4q","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-7q44-r25x-wm4q","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.953Z"},{"id":"sr-7dbf0d058468747a21a629ef356a67e1","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-2021-34551","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:03.704Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7618e8b1310fb7103b1aac370ac36c36"],"technology":"phpmailer/phpmailer","known_exclusions":[],"conditions_summary":"PHPMailer 6.4.1 contains a possible remote code execution vulnerability through the `$lang_path` parameter of the `setLanguage()` method. If the `$lang_path` parameter is passed unfiltered from user input, it can be set to a UNC path, and if an attacker is also able to create a remote mount on the server that the UNC path points to, a script file under their control may be executed. \n\n### Impact\nArbitrary code may be run by a remote attacker under the web server or PHP process running on Window hosts.\n\n### Patches\nMitigated in PHPMailer 6.5.0 by no longer treating translation files as PHP code, but by parsing their text content directly.\nThis approach avoids the possibility of executing unknown code while retaining backward compatibility. This isn't ideal, so the current translation format is deprecated and will be replaced in the next major release.\n\n### Workarounds\nAny of:\n* Ensure that calling code does not pass unfiltered user-supplied data to the `$lang_path` parameter of the `setLanguage()` method.\n* Block or filter the use of unknown UNC paths in this parameter (or altogether).\n* Ensure that u","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 6.5.0"]}],"null_published_at":"2026-11-01T19:14:01.621Z","source_updated_at":"2024-02-17T05:31:56.638Z","source_disclosed_at":"2021-06-22T15:17:51.000Z","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":"2026-10-31T21:41:59.953Z"},{"id":"NVI-00004851","kind":"vulnerability","title":"Remote Code Execution vulnerability in PHPMailer 6.4.1 running on Windows","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-7q44-r25x-wm4q","CVE-2021-34551"],"plain_summary":"OSV carries this publisher advisory for phpmailer/phpmailer. 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 6.5.0 for phpmailer/phpmailer. Confirm the publisher’s latest guidance.","source_ids":["sr-7618e8b1310fb7103b1aac370ac36c36"],"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-7618e8b1310fb7103b1aac370ac36c36","url":"https://github.com/advisories/GHSA-7q44-r25x-wm4q","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-7q44-r25x-wm4q","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.953Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7618e8b1310fb7103b1aac370ac36c36"],"technology":"phpmailer/phpmailer","known_exclusions":[],"conditions_summary":"PHPMailer 6.4.1 contains a possible remote code execution vulnerability through the `$lang_path` parameter of the `setLanguage()` method. If the `$lang_path` parameter is passed unfiltered from user input, it can be set to a UNC path, and if an attacker is also able to create a remote mount on the server that the UNC path points to, a script file under their control may be executed. \n\n### Impact\nArbitrary code may be run by a remote attacker under the web server or PHP process running on Window hosts.\n\n### Patches\nMitigated in PHPMailer 6.5.0 by no longer treating translation files as PHP code, but by parsing their text content directly.\nThis approach avoids the possibility of executing unknown code while retaining backward compatibility. This isn't ideal, so the current translation format is deprecated and will be replaced in the next major release.\n\n### Workarounds\nAny of:\n* Ensure that calling code does not pass unfiltered user-supplied data to the `$lang_path` parameter of the `setLanguage()` method.\n* Block or filter the use of unknown UNC paths in this parameter (or altogether).\n* Ensure that u","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 6.5.0"]}],"null_published_at":"2026-10-31T22:12:57.145Z","source_updated_at":"2024-02-17T05:31:56.638Z","source_disclosed_at":"2021-06-22T15:17:51.000Z","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":"2026-10-31T21:41:59.953Z"}],"next_cursor":null,"snapshot_revision":"42594"}