CVE-2026-89001 WPeMatico RSS Feed Fetcher < 2.8.27 - Contributor+ Post Publication and Author Spoofing via Campaign Settings
Contributors can publish posts and spoof authors, including administrators, due to missing authorization checks in the WPeMatico RSS Feed Fetcher plugin.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-89001?
CVE-2026-89001 is a medium-severity vulnerability in Unknown WPeMatico RSS Feed Fetcher, published on 27 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-269
Which versions are affected by CVE-2026-89001?
How do I fix CVE-2026-89001?
No fix has been published for CVE-2026-89001 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-89001 being exploited?
There is no known exploitation of CVE-2026-89001 in the wild and no public exploit code.
Sources
Also known as GHSA-m259-ww4h-6j9q.