{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53595", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-09T19:39:52.403Z", "datePublished": "2026-07-20T20:14:59.365Z", "dateUpdated": "2026-07-21T14:56:21.784Z"}, "containers": {"cna": {"title": "FreeScout vulnerable to anonymous account takeover via /user-setup empty invite_hash on MySQL", "problemTypes": [{"descriptions": [{"cweId": "CWE-178", "lang": "en", "description": "CWE-178: Improper Handling of Case Sensitivity", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-287", "lang": "en", "description": "CWE-287: Improper Authentication", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-640", "lang": "en", "description": "CWE-640: Weak Password Recovery Mechanism for Forgotten Password", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 9.4, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-jqj5-r72v-v29g", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-jqj5-r72v-v29g"}], "affected": [{"vendor": "freescout-help-desk", "product": "freescout", "versions": [{"version": "< 1.8.224", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-20T20:14:59.365Z"}, "descriptions": [{"lang": "en", "value": "FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.224, the public endpoint `POST /user-setup/{hash}/{invite_sent_at}` (`OpenController@userSetupSave`) selects the target account solely by its `invite_hash` column, then overwrites that account's email and password and logs in as it. No authentication, cookie, or prior session is required. After a user activates, FreeScout sets `invite_hash` to the empty string. On MySQL and MariaDB, `VARCHAR` equality ignores trailing spaces, so a single URL-encoded space (`%20`) matches the stored empty string and selects the lowest-id activated user. The expiry guard decrypts `invite_sent_at` with the target's password hash, but `Helper::decrypt` returns its raw input unchanged when decryption fails. A plaintext numeric value such as `9999999999` therefore passes the time-to-live check without any secret. The result is that an anonymous attacker sets the email and password of the lowest-id activated FreeScout account (a support agent, or an administrator if one was added by invitation) and authenticates as that account. Version 1.8.224 contains a fix."}], "source": {"advisory": "GHSA-jqj5-r72v-v29g", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-jqj5-r72v-v29g", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-21T13:20:35.944303Z", "id": "CVE-2026-53595", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-21T14:56:21.784Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-53595", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-07-21T13:20:35.944303Z"}}}], "references": [{"url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-jqj5-r72v-v29g", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-21T13:20:46.783Z"}}], "cna": {"title": "FreeScout vulnerable to anonymous account takeover via /user-setup empty invite_hash on MySQL", "source": {"advisory": "GHSA-jqj5-r72v-v29g", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.4, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "freescout-help-desk", "product": "freescout", "versions": [{"status": "affected", "version": "< 1.8.224"}]}], "references": [{"url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-jqj5-r72v-v29g", "name": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-jqj5-r72v-v29g", "tags": ["x_refsource_CONFIRM"]}], "descriptions": [{"lang": "en", "value": "FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.224, the public endpoint `POST /user-setup/{hash}/{invite_sent_at}` (`OpenController@userSetupSave`) selects the target account solely by its `invite_hash` column, then overwrites that account's email and password and logs in as it. No authentication, cookie, or prior session is required. After a user activates, FreeScout sets `invite_hash` to the empty string. On MySQL and MariaDB, `VARCHAR` equality ignores trailing spaces, so a single URL-encoded space (`%20`) matches the stored empty string and selects the lowest-id activated user. The expiry guard decrypts `invite_sent_at` with the target's password hash, but `Helper::decrypt` returns its raw input unchanged when decryption fails. A plaintext numeric value such as `9999999999` therefore passes the time-to-live check without any secret. The result is that an anonymous attacker sets the email and password of the lowest-id activated FreeScout account (a support agent, or an administrator if one was added by invitation) and authenticates as that account. Version 1.8.224 contains a fix."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-178", "description": "CWE-178: Improper Handling of Case Sensitivity"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-287", "description": "CWE-287: Improper Authentication"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-640", "description": "CWE-640: Weak Password Recovery Mechanism for Forgotten Password"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-20T20:14:59.365Z"}}}, "cveMetadata": {"cveId": "CVE-2026-53595", "state": "PUBLISHED", "dateUpdated": "2026-07-21T14:56:21.784Z", "dateReserved": "2026-06-09T19:39:52.403Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-07-20T20:14:59.365Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.8.224)"}}], "enrichment": {"confidence": 98.0, "confidence_source": "matching", "scores": [{"score": 98.0, "source": "matching"}]}, "original": {"product": "freescout", "source": "cna", "vendor": "freescout-help-desk"}, "product": "freescout", "vendor": "freescout_helpdesk"}], "created": "2026-07-20T22:15:03.306224+00:00", "updated": "2026-07-20T22:15:03.306251+00:00", "vendors": ["freescout_helpdesk", "freescout_helpdesk$PRODUCT$freescout"]}