CVE-2026-77786 Rank Math SEO < 1.0.277 - Editor+ Core Settings Modification via fix-site-seo Ability
Editors can modify site-wide core WordPress settings via the Rank Math SEO plugin due to missing capability checks, leading to privilege escalation.
- 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-2026-77786?
CVE-2026-77786 is a medium-severity missing authorization vulnerability in Unknown Rank Math SEO, published on 29 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The Rank Math SEO WordPress plugin before 1.0.277 does not check that the user requesting an automated SEO fix holds the capability WordPress itself requires for the settings being changed, allowing users with the Editor role to modify site-wide core WordPress settings that are reserved to administrators.
Weakness: CWE-863
Which versions are affected by CVE-2026-77786?
How do I fix CVE-2026-77786?
No fix has been published for CVE-2026-77786 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-77786 being exploited?
There is no known exploitation of CVE-2026-77786 in the wild and no public exploit code.
Sources
Also known as GHSA-qc24-rpm8-fvr8.