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TI-2026-54177 Aliases CVE-2026-77788GHSA-4vrc-p2pf-p4qj

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

Priority LOW 22CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-639.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00331 26th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Rank Math SEO (Unknown): 1.0.277

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownRank Math SEO1.0.48 to before 1.0.2771.0.277Patch availableCNA
  • Rank Math SEO VendorUnknown Affected 1.0.48 to before 1.0.277 Fixed in 1.0.277 Patch available CNA

Remediation

  • Fix · CNA Rank Math SEO (Unknown) Fixed in 1.0.277

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Rank Math SEO 1.0.277

    5 records Highest priority Priority LOW 5 LOW

    Other records, highest priority first

    • TI-2026-54172 Rank Math SEO < 1.0.277 - Unauthenticated Non-Public Post Schema and Content DisclosurePriority LOW 17
    • TI-2026-54176 Rank Math SEO < 1.0.277 - Author+ Term Metadata Update and Cross-Object Post Title Overwrite via updateMetaBulkPriority LOW 13
    • TI-2026-54174 Rank Math SEO < 1.0.277 - Author+ Non-Public Post Content Disclosure via Abilities APIPriority LOW 13
    Show all 5 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-77788
  2. 2026-10-03 Alias added: GHSA-4vrc-p2pf-p4qj

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences