CVE-2026-77788

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

Published Sep 2, 2026 CVSS 3.1 · 4.9 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Weaknesses CWE-284
Type Values Removed Values Added
Weaknesses CWE-639
Metrics cvssV3_1

{'score': 4.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Rank Math Seo
Rank Math Seo rank Math Seo
Wordpress
Wordpress wordpress
Weaknesses CWE-284
Vendors & Products Rank Math Seo
Rank Math Seo rank Math Seo
Wordpress
Wordpress wordpress
Type Values Removed Values Added
Description 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.
Title Rank Math SEO < 1.0.277 - Author+ Arbitrary Post and User Metadata Overwrite via updateSchemas
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Sep 2, 2026, 10:45 AM
Reserved
Aug 21, 2026, 12:06 PM
Status
Deferred
Published
Sep 2, 2026, 6:17 AM
Modified
Sep 3, 2026, 5:50 PM