CVE-2026-48810

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to 1.8.221, while investigating the ThreadPolicy::delete issue reported previously, the same missing mailbox membership check was found in the sibling ThreadPolicy::edit method. A user with the PERM_EDIT_CONVERSATIONS permission who created a message or internal note in Mailbox A can rewrite that thread's body after an administrator removes them from Mailbox A, because the policy checks only authorship and a global permission flag — not current mailbox membership. This vulnerability is fixed in 1.8.221.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-3w38-h42v-3h6w
https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-3w38-h42v-3h6w

Configurations

No configuration.

History

No history.

Information

Published : 2026-05-29 20:16

Updated : 2026-07-22 06:10

NVD link : CVE-2026-48810

Mitre link : CVE-2026-48810

CVE.ORG link : CVE-2026-48810

JSON object : View

Products Affected

No product.

CWE

CWE-285

Improper Authorization

{"id": "CVE-2026-48810", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-48810", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-01T18:00:40.817788Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "freescout-help-desk", "product": "freescout", "versions": [{"status": "affected", "version": "< 1.8.221"}]}]}], "published": "2026-05-29T20:16:29.083", "references": [{"url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-3w38-h42v-3h6w", "source": "security-advisories@github.com"}, {"url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-3w38-h42v-3h6w", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-285"}]}], "descriptions": [{"lang": "en", "value": "FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to 1.8.221, while investigating the ThreadPolicy::delete issue reported previously, the same missing mailbox membership check was found in the sibling ThreadPolicy::edit method. A user with the PERM_EDIT_CONVERSATIONS permission who created a message or internal note in Mailbox A can rewrite that thread's body after an administrator removes them from Mailbox A, because the policy checks only authorship and a global permission flag \u2014 not current mailbox membership. This vulnerability is fixed in 1.8.221."}, {"lang": "es", "value": "FreeScout es una mesa de ayuda gratuita y una bandeja de entrada compartida construida con el framework Laravel de PHP. Antes de la versi\u00f3n 1.8.221, mientras se investigaba el problema de ThreadPolicy::delete reportado previamente, se encontr\u00f3 la misma falta de verificaci\u00f3n de membres\u00eda de buz\u00f3n en el m\u00e9todo hermano ThreadPolicy::edit. Un usuario con el permiso PERM_EDIT_CONVERSATIONS que cre\u00f3 un mensaje o una nota interna en el Buz\u00f3n A puede reescribir el cuerpo de ese hilo despu\u00e9s de que un administrador lo elimine del Buz\u00f3n A, porque la pol\u00edtica verifica solo la autor\u00eda y un indicador de permiso global - no la membres\u00eda actual del buz\u00f3n. Esta vulnerabilidad est\u00e1 corregida en la versi\u00f3n 1.8.221."}], "lastModified": "2026-07-22T06:10:00.170", "sourceIdentifier": "security-advisories@github.com"}