CVE-2026-77788mediumCWE-639

CVE-2026-77788: medium-severity vulnerability in Rank Math SEO

Rank Math SEO < 1.0.277 - Author+ Arbitrary Post and User Metadata Overwrite via updateSchemas

Published

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33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 4.9epss 0.3%
The Rank Math SEO WordPress plugin before 1.0.277 does not verify that the metadata row being updated belongs to the object the user was authorised against, allowing users with the Author role and above to overwrite arbitrary post and user metadata, including that belonging to higher-privileged users.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Affected products
Unknown · Rank Math SEO
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Rank Math SEO

In the same product, most dangerous first.

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