What is GHSA-m259-ww4h-6j9q?

GHSA-m259-ww4h-6j9q is a security advisory published by GitHub Security Advisories with Medium severity. The WPeMatico RSS Feed Fetcher WordPress plugin before 2.8.27 does not verify that a user running...

Which CVE IDs does GHSA-m259-ww4h-6j9q cover?

GHSA-m259-ww4h-6j9q covers the following CVE IDs: CVE-2026-89001. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-m259-ww4h-6j9q?

GHSA-m259-ww4h-6j9q has a CVSS v3 base score of 4.9, published by GitHub Security Advisories.

GHSA-m259-ww4h-6j9qMediumCVSS 4.9

The WPeMatico RSS Feed Fetcher WordPress plugin before 2.8.27 does not verify that a user running...

Vendor

GitHub Security Advisories

Published

September 27, 2026

Last Modified

September 28, 2026

🔗 CVE IDs covered (1)

CVE-2026-89001 →

📋 Description

The WPeMatico RSS Feed Fetcher WordPress plugin before 2.8.27 does not verify that a user running a feed campaign is permitted to publish content or to attribute posts to another account, allowing users with contributor-level access and above to publish posts live and set any registered user, including an administrator, as the post author.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-89001
https://wpscan.com/vulnerability/829bfdc3-7a15-4d6a-9782-72d34fd114b7
https://github.com/advisories/GHSA-m259-ww4h-6j9q