Vulnerability Description
The TranslatePress – Translate Multilingual sites with AI Translation plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content (URL-encoded gettext markers) in all versions up to, and including, 3.2.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Comment moderation may delay exploitation for first-time commenters, but does not prevent it, as the payload uses only WordPress-permitted tags and attributes with percent-encoded characters that pass wp_kses URL validation unmodified.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/translatepress-multilingual/tags/3.2.
- https://plugins.trac.wordpress.org/browser/translatepress-multilingual/tags/3.2.
- https://plugins.trac.wordpress.org/browser/translatepress-multilingual/tags/3.2.
- https://plugins.trac.wordpress.org/changeset/3634273/translatepress-multilingual
- https://plugins.trac.wordpress.org/changeset?old_path=%2Ftranslatepress-multilin
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3634273%40translatepr
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ca97a718-7508-4bc0-8f8
FAQ
What is CVE-2026-18510?
CVE-2026-18510 is a vulnerability with a CVSS score of 7.2 (HIGH). The TranslatePress – Translate Multilingual sites with AI Translation plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content (URL-encoded gettext markers) in all version...
How severe is CVE-2026-18510?
CVE-2026-18510 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-18510?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.