CVE-2026-81757 WordPress Rank Math SEO plugin <= 1.0.276 - Remote Code Execution (RCE) vulnerability
An attacker can achieve remote code execution in the Rank Math SEO plugin for WordPress via a deserialization vulnerability.
- 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-2026-81757?
CVE-2026-81757 is a high-severity unsafe deserialization vulnerability in Rank Math SEO, published on 28 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Author Remote Code Execution (RCE) in Rank Math SEO <= 1.0.276 versions.
Weakness: CWE-502
Which versions are affected by CVE-2026-81757?
How do I fix CVE-2026-81757?
No fix has been published for CVE-2026-81757 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2026-81757 being exploited?
There is no known exploitation of CVE-2026-81757 in the wild and no public exploit code.
Sources
Also known as GHSA-mgrf-fv5m-433v.