CVE-2026-85744

Full vulnerability record from the local CVENow database.

Description

FreeScout is a self-hosted help desk and shared mailbox. Prior to 1.8.227, the conversation_merge action records a failed authorization check for the target conversation in response['msg'] and then clears that value inside the source-conversation loop. An authenticated agent can merge a conversation they control into a target conversation in a mailbox they cannot access. The operation injects threads, attachments, and audit records into the unauthorized target and deletes the source conversation, but it does not disclose the target's existing contents. This issue is fixed in version 1.8.227.

Severity

MEDIUM

CVSS score

5.4 (v3.1)

Vulnerability status

Received

Source identifier

[email protected]

Published

2026-11-06 17:20:02.770000

Last modified

2026-11-06 17:20:02.770000

View original CVE JSON

{
  "id": "CVE-2026-85744",
  "sourceIdentifier": "[email protected]",
  "published": "2026-11-06T17:20:02.770",
  "lastModified": "2026-11-06T17:20:02.770",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "FreeScout is a self-hosted help desk and shared mailbox. Prior to 1.8.227, the conversation_merge action records a failed authorization check for the target conversation in response['msg'] and then clears that value inside the source-conversation loop. An authenticated agent can merge a conversation they control into a target conversation in a mailbox they cannot access. The operation injects threads, attachments, and audit records into the unauthorized target and deletes the source conversation, but it does not disclose the target's existing contents. This issue is fixed in version 1.8.227."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "freescout-help-desk",
          "product": "freescout",
          "versions": [
            {
              "version": "< 1.8.227",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.5
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/freescout-help-desk/freescout/commit/7c485c96bef7188c276906200250ce9d8a2bdfeb",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/freescout-help-desk/freescout/releases/tag/1.8.227",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-v8vc-cmf9-gg2c",
      "source": "[email protected]"
    }
  ]
}