CVE-2026-2502
The xmlrpc attacks blocker plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 1.0, via the 'X-Forwarded-For' HTTP header.
Does this matter?
Lower severity and a low EPSS score (0.27%). Track it; it rarely justifies an emergency change on its own.
Description
The xmlrpc attacks blocker plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 1.0, via the 'X-Forwarded-For' HTTP header. This is due to the plugin trusting and logging attacker-controlled IP header data and rendering debug log entries without output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that execute when an administrator views the debug log page.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.27% probability · 18th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Source
- security@wordfence.com
References
- https://plugins.trac.wordpress.org/browser/xmlrpc-attacks-blocker/tags/1.0/plugin.php#L186
- https://plugins.trac.wordpress.org/browser/xmlrpc-attacks-blocker/tags/1.0/plugin.php#L269
- https://plugins.trac.wordpress.org/browser/xmlrpc-attacks-blocker/tags/1.0/plugin.php#L312
- https://plugins.trac.wordpress.org/browser/xmlrpc-attacks-blocker/tags/1.0/plugin.php#L341
- https://www.wordfence.com/threat-intel/vulnerabilities/id/059f0c64-efcc-4b79-81eb-b4ae9e3e2826?source=cve
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.