Vulnerabilities / Rank Math SEO / WPSEC-2026-0540
Rank Math SEO <= 1.0.279 - Missing Authorization to Unauthenticated SEO Analyzer Results Deletion
Medium 5.3
CWE-862Fixed in 1.0.280
- ID
- WPSEC-2026-0540
- Plugin
- Rank Math SEO – AI SEO Tools to Dominate SEO Rankings (seo-by-rank-math)
- Affected
- from 1.0.31 before 1.0.280
- Remediation
- Update to 1.0.280 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weakness
- CWE-862
- Usage
- Plugin Medium · Affected versions Medium among sites WPSec scans, 2026-10-07
- Attack surface
- Rank Math SEO on WPSec AttackSurface
- Fix released
- Published
Description
The Rank Math SEO plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the SEO Analyzer's 'clear_results' handler in all versions up to, and including, 1.0.279. The handler ran whenever the SEO Analyzer was loaded, including on every admin-ajax.php request, and checked neither a capability nor a nonce. The SEO Analyzer module is enabled by default. This makes it possible for unauthenticated attackers to delete the site's stored SEO Analyzer results.
References
- https://wpsec.com/vuln/WPSEC-2026-0540/
- https://plugins.svn.wordpress.org/seo-by-rank-math/tags/1.0.280/
- https://wordpress.org/plugins/seo-by-rank-math/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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