Medium severity · published Aug 29, 2026
CVE-2026-77786
Rank Math SEO < 1.0.277 - Editor+ Core Settings Modification via fix-site-seo Ability
4.9
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RM
Rank Math SEO ·
1.0.271 before 1.0.277 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-77786
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-77786
wpscan.com
https://wpscan.com/vulnerability/b0f3dfdb-9f0a-418c-9ce5-6a2b2b1f1b49/
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