A code execution vulnerability exists in CMSimple 5.22 in the CoAuthors plugin. An authenticated low-privileged user who can modify page content and provide controlled imported content can trigger server-side execution by referencing crafted external or uploaded text content through the affected content import feature.
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Wed, 09 Sep 2026 14:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-94
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 08 Sep 2026 20:15:00 +0000

Type Values Removed Values Added
Description A code execution vulnerability exists in CMSimple 5.22 in the CoAuthors plugin. An authenticated low-privileged user who can modify page content and provide controlled imported content can trigger server-side execution by referencing crafted external or uploaded text content through the affected content import feature.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-09T13:05:57.157Z

Reserved: 2026-08-25T00:00:00.000Z

Link: CVE-2026-78834

cve-icon Vulnrichment

Updated: 2026-09-09T13:05:52.898Z

cve-icon NVD

Status : Deferred

Published: 2026-09-08T20:18:38.773

Modified: 2026-09-09T16:04:24.933

Link: CVE-2026-78834

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-10T03:15:16Z

Weaknesses