What is GHSA-6mmg-h49f-fj9x?

GHSA-6mmg-h49f-fj9x is a security advisory published by GitHub Security Advisories with Medium severity. The K2 article gallery upload path accepts a zip/tar archive, extracts it under `/media/k2...

Which CVE IDs does GHSA-6mmg-h49f-fj9x cover?

GHSA-6mmg-h49f-fj9x covers the following CVE IDs: CVE-2026-48945. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-6mmg-h49f-fj9x?

GHSA-6mmg-h49f-fj9x has a CVSS v3 base score of 5.3, published by GitHub Security Advisories.

GHSA-6mmg-h49f-fj9xMediumCVSS 5.3

The K2 article gallery upload path accepts a zip/tar archive, extracts it under `/media/k2...

Vendor

GitHub Security Advisories

Published

June 25, 2026

Last Modified

June 25, 2026

🔗 CVE IDs covered (1)

CVE-2026-48945 →

📋 Description

The K2 article gallery upload path accepts a zip/tar archive, extracts it under /media/k2/galleries/<id>/, and only renames image files (gif/jpg/jpeg/png/webp) to safe names — non-image files (including .php) are extracted as-is and remain executable via direct HTTP access.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-48945
https://www.getk2.org
https://github.com/advisories/GHSA-6mmg-h49f-fj9x