CVE-2026-19883 Privilege escalation in WPeMatico RSS Feed Fetcher
Authenticated subscribers can escalate privileges to administrator by modifying site options due to missing capability checks in the WPeMatico plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-19883?
CVE-2026-19883 is a high-severity vulnerability in etruel WPeMatico RSS Feed Fetcher, published on 22 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The WPeMatico RSS Feed Fetcher plugin for WordPress is vulnerable to unauthorized modification of data that can lead to privilege escalation due to a missing capability check on the wpematico_import_settings function in all versions up to, and including, 2.8.24. This makes it possible for authenticated attackers, with subscriber-level access and above, to update arbitrary options on the WordPress site. This can be leveraged to update the default role for registration to administrator and enable user registration for attackers to gain administrative user access.
Weakness: CWE-269
Which versions are affected by CVE-2026-19883?
How do I fix CVE-2026-19883?
No fix has been published for CVE-2026-19883 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-19883 being exploited?
There is no known exploitation of CVE-2026-19883 in the wild and no public exploit code.
Sources
Also known as GHSA-rhx5-89fh-523v.