What is GHSA-x6hj-fj57-58jm?

GHSA-x6hj-fj57-58jm is a security advisory published by GitHub Security Advisories with High severity. A code execution vulnerability exists in CMSimple 5.22 in the CoAuthors plugin. An authenticated...

Which CVE IDs does GHSA-x6hj-fj57-58jm cover?

GHSA-x6hj-fj57-58jm covers the following CVE IDs: CVE-2026-78834. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-x6hj-fj57-58jm?

GHSA-x6hj-fj57-58jm has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-x6hj-fj57-58jmHighCVSS 8.8

A code execution vulnerability exists in CMSimple 5.22 in the CoAuthors plugin. An authenticated...

Vendor

GitHub Security Advisories

Published

September 8, 2026

Last Modified

September 9, 2026

🔗 CVE IDs covered (1)

CVE-2026-78834 →

📋 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 (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-78834
https://github.com/AEQ3/CVE/issues/1
https://gist.github.com/AEQ3/574cb644306776a9ff1a0de30b085e62
https://github.com/advisories/GHSA-x6hj-fj57-58jm