{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-62856","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-07-14T21:10:50.032Z","datePublished":"2026-11-06T17:00:33.424Z","dateUpdated":"2026-11-06T17:00:33.424Z"},"containers":{"cna":{"title":"FreeScout: Cross-User Notification Data Disclosure via LIKE Wildcard Injection in Polycast Channel Query","problemTypes":[{"descriptions":[{"cweId":"CWE-89","lang":"en","description":"CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-200","lang":"en","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-639","lang":"en","description":"CWE-639: Authorization Bypass Through User-Controlled Key","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-gh3r-jh6q-wrvj","tags":["x_refsource_CONFIRM"],"url":"https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-gh3r-jh6q-wrvj"},{"name":"https://github.com/freescout-help-desk/freescout/commit/1f4deee6369d89a70d291248499883b5bfdb99ff","tags":["x_refsource_MISC"],"url":"https://github.com/freescout-help-desk/freescout/commit/1f4deee6369d89a70d291248499883b5bfdb99ff"},{"name":"https://github.com/freescout-help-desk/freescout/commit/656cb2349cd3bb11f04f01c1587900dfb423a855","tags":["x_refsource_MISC"],"url":"https://github.com/freescout-help-desk/freescout/commit/656cb2349cd3bb11f04f01c1587900dfb423a855"},{"name":"https://github.com/freescout-help-desk/freescout/releases/tag/1.8.226","tags":["x_refsource_MISC"],"url":"https://github.com/freescout-help-desk/freescout/releases/tag/1.8.226"}],"affected":[{"vendor":"freescout-help-desk","product":"freescout","versions":[{"version":"< 1.8.226","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-11-06T17:00:33.424Z"},"descriptions":[{"lang":"en","value":"FreeScout is a self-hosted help desk and shared mailbox application. Prior to version 1.8.226, the  polycast/receive  endpoint fails to escape SQL LIKE wildcards in supplied channel names, while channel authorization applies only to names with specific prefixes. An unauthenticated attacker with a guest session and valid CSRF token can submit a wildcard channel name to retrieve matching notification events intended for other users. Notification payload generation lacks a corresponding access check, exposing conversation message content, identifiers, URLs, and notification HTML across users and mailboxes. This issue is fixed in version 1.8.226."}],"source":{"advisory":"GHSA-gh3r-jh6q-wrvj","discovery":"UNKNOWN"}}}}