{"id":"CVE-2026-85749","title":"MailWatch: IDOR lets any authenticated user release or delete another tenant's quarantined mail","summary":"MailWatch for MailScanner is a web-based front-end to MailScanner. Prior to 1.2.27, any authenticated MailWatch user, including the U/user, D/domain-admin, and H/host roles, can release to inbox or permanently delete the quarantined mail…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","cvssSource":"cna","cwe":["CWE-566","CWE-639"],"vendor":"mailwatch","product":"MailWatch","affected":["MailWatch < 1.2.27"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-29T14:46:02.708558Z"},"exploitAvailable":true,"published":"2026-10-28","updated":"2026-10-29","sourceUpdated":"2026-10-29T14:46:47.666Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-85749","references":[{"url":"https://github.com/mailwatch/MailWatch/security/advisories/GHSA-w7v5-7g6w-87r4","label":"https://github.com/mailwatch/MailWatch/security/advisories/GHSA-w7v5-7g6w-87r4"},{"url":"https://github.com/mailwatch/MailWatch/commit/bc04f25eb0cec028cbd4ded9c049cfc6f663a15f","label":"https://github.com/mailwatch/MailWatch/commit/bc04f25eb0cec028cbd4ded9c049cfc6f663a15f"},{"url":"https://github.com/mailwatch/MailWatch/releases/tag/v1.2.27","label":"https://github.com/mailwatch/MailWatch/releases/tag/v1.2.27"}],"tags":["cve.org","exploit-available"],"epss":0.00287,"epssPercentile":0.21392,"ingestedAt":"2026-11-01T20:00:16.946Z","slug":"CVE-2026-85749","body":"## Overview\n\nMailWatch for MailScanner is a web-based front-end to MailScanner. Prior to 1.2.27, any authenticated MailWatch user, including the U/user, D/domain-admin, and H/host roles, can release to inbox or permanently delete the quarantined mail of any other user or domain by supplying an arbitrary message `id` to `mailscanner/quarantine_action.php`. The action path calls `quarantine_list_items()` in `mailscanner/functions.php`, which selects from `maillog` by the supplied identifier without the per-role `global_filter` applied by listing and read views. The action requires a valid session and CSRF token, but the caller can submit a token from the caller's own session; ownership of the requested message is never checked. Message identifiers are enumerable, allowing a low-privilege user to invoke `quarantine_release()` or `quarantine_delete()` for other users' or domains' quarantined messages, force-delivering mail held by the quarantine or permanently deleting it. This issue is fixed in version 1.2.27.\n\n## Affected\n\n- `MailWatch < 1.2.27`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":57,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}