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TI-2026-81669 Aliases CVE-2026-1928GHSA-f7v4-wpwr-74r2

Rank Math SEO plugin PHP object injection leads to code execution

Priority MEDIUM 41CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

The Rank Math SEO plugin for WordPress is affected in all versions up to and including 1.0.276. The updateMeta REST API endpoint deserializes untrusted input (CWE-502), so an authenticated attacker with Contributor-level access or above can inject a PHP object. A POP chain in the plugin lets the attacker achieve remote code execution by writing a webshell to the uploads directory.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

The Rank Math SEO – AI SEO Tools to Dominate SEO Rankings plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.0.276 via deserialization of untrusted input in the updateMeta REST API endpoint. This makes it possible forauthenticated attackers, with Contributor-level access and above, to inject a PHP Object. The additional presence of a POP chain allows attackers to achieve remote code execution by writing a webshell to the uploads directory.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00538 45th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
rankmathRank Math SEO – AI SEO Tools to Dominate SEO Rankingsup to 1.0.276—No fix listedCNA
  • Rank Math SEO – AI SEO Tools to Dominate SEO Rankings Vendorrankmath Affected up to 1.0.276 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:rankmath:seo:*:*:*:*:*:*:*:*——rankmath
  • cpe:2.3:a:rankmath:seo:*:*:*:*:*:*:*:* Versions — — ·rankmath

Remediation

The sources list no fixed version for Rank Math SEO.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-28 Threatist record created from CVE-2026-1928
  2. 2026-10-28 Alias added: GHSA-f7v4-wpwr-74r2
  3. 2026-10-28 Priority changed: MEDIUM → LOW
  4. 2026-10-29 CISA SSVC decision points changed
  5. 2026-10-29 Priority changed: LOW → MEDIUM

References

Other 5

  • TI-2024-04306 Rank Math SEO < 1.0.219 - Authenticated Stored XSS CVSS 3.1MEDIUM 5.5
  • TI-2020-09234 The Rank Math plugin through 1.0.40.2 for WordPress allows unauthenticated remote… CVSS 3.1CRITICAL 9.8
  • TI-2026-76436 Rank Math SEO PRO 3.0.123 - Unauthenticated Embedded Malicious Code CVSS 3.1CRITICAL 9.8
  • TI-2022-16715 WordPress Rank Math SEO plugin <= 1.0.95 - Server-Side Request Forgery (SSRF) vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2023-09687 WordPress Rank Math SEO plugin <= 1.0.107.2 - Local File Inclusion vulnerability CVSS 3.1HIGH 8.8
  • TI-2024-12272 Cross-site scripting in rankmath Rank Math SEO – AI SEO Tools to Dominate SEO Rankings CVSS 3.1MEDIUM 6.4
See all 19 →

Sources

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