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Rank Math SEO - Security Vulnerability (CVE-2026-77784)

CVE-2026-77784

Vulnerability CVE-2026-77784 PLUGIN rank-math-seo LOW

The Rank Math SEO WordPress plugin before 1.0.277 does not verify that a user is allowed to edit the object being modified before updating its SEO indexing metadata, allowing users with the Author role and above to alter that metadata on content, taxonomy terms and user profiles they do not own, and to remove other users' content from the site's sitemap and search engine index.

CVE-2026-77784

LOW CVSS 2.7 Published 2026-09-02 Updated 2026-09-03
AI Risk Low (24/100) Active Exploit: No strong signal Published Exploit: No public exploit references Priority: P5 Monitor
Severity Band LOW
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
Affected Components 1
Reference Links 1
AI Risk Engine Low (24/100)
Exploitability Low
Active Exploitation No strong signal
Published Exploit Status No public exploit references

Threat Timeline

  1. 2026-09-02 CVE published and first recorded in the threat feed.
  2. 2026-09-03 Record updated with latest vulnerability metadata.
  3. 2026-09-03 AI technical context refreshed for mitigation and impact guidance.
  4. Now Monitoring for follow-up changes, linked references, and new related CVEs.

AI Context

Machine-generated threat intelligence

AI Updated 1 day ago

AI enriched 1 day ago (2026-09-03 22:55 UTC)

Technical Summary

The Rank Math SEO WordPress plugin before 1.0.277 does not verify that a user is allowed to edit the object being modified before updating its SEO indexing metadata, allowing users with the Author role and above to alter that metadata on content, taxonomy terms and user profiles they do not own, and to remove other users' content from the site's sitemap and search engine index.

Potential Impact

Severity is LOW (CVSS 2.7). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as Low based on severity and technical exposure profile.

Primary risk drivers: severity and technical exposure profile

Mitigation Recommendations

Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.

Detection & Monitoring

Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.

Business Impact Lens

AI risk score 24/100 (Low, Low) with priority P5 Monitor. Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

Affected Products

Rank Math SEO PLUGIN · rank-math-seo Affected: < 1.0.277 Fixed in: 1.0.277

Related Vulnerabilities

Browse All Threats

Newest linked vulnerabilities to keep visitors exploring adjacent CVE coverage.

Rank Math SEO - Security Vulnerability (CVE-2026-77782) CVE-2026-77782 Published 2026-09-02 New Rank Math SEO - Security Vulnerability (CVE-2026-77788) CVE-2026-77788 Published 2026-09-02 New Rank Math SEO - Security Vulnerability (CVE-2026-77783) CVE-2026-77783 Published 2026-09-02 New Rank Math SEO - Security Vulnerability (CVE-2026-77787) CVE-2026-77787 Published 2026-09-02 New Rank Math SEO - Security Vulnerability (CVE-2026-77785) CVE-2026-77785 Published 2026-09-02 New Rank Math SEO - Security Vulnerability (CVE-2026-77786) CVE-2026-77786 Published 2026-08-29 New

References

What to do about this

Patch on your next cycle Worth fixing, but not ahead of other work.

Fix it

Update Rank Math SEO to 1.0.277 or later.

That is the complete fix. Everything below is what protects you in the meantime.

Cannot update today? Request / payload inspection (WAF) in Hack Halt ProSecure blocks this class of attack before WordPress processes the request.

Inspect request parameters and bodies for injection, traversal and file-inclusion payloads, and refuse the request rather than logging it.

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Not sure if you are affected?

Scan your site to see whether it runs Rank Math SEO, and at which version.

Free, no installation, no account. It reads what your site already publishes, then tells you which plugins carry known vulnerabilities and what to do about each one.

Scan my site free See what Hack Halt does

Am I affected by this vulnerability?

You are affected if your site runs Rank Math SEO. Versions below 1.0.277 are vulnerable; that release and later are not. An attacker needs author or above, so open registration materially increases the risk.

How do I fix it?

Update Rank Math SEO to version 1.0.277 or later. That is the complete fix. Until you can update, Request / payload inspection (WAF) in Hack Halt ProSecure contains this class of attack at the request layer.

What can an attacker actually do?

This is a Broken Access Control flaw. An attacker who exploits it can reach actions or data that should have been restricted to someone else.

WordPress security that blocks attacks before they land.

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