High severity · published Aug 6, 2026
CVE-2026-18510
TranslatePress <= 3.2.6 - Unauthenticated Stored Cross-Site Scripting via Comment Content
7.2
CVSS
0.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TT
TranslatePress – Translate Multilingual sites with AI Translation · cozmoslabs
through 3.2.6 · source: vendor
Affected product
TT
TranslatePress – Translate Multilingual sites with AI Translation
cozmoslabs
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-18510
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-18510
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/translatepress-multilingual/tags/3.2.6/includes/class-translation-render.php#L1232
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/translatepress-multilingual/tags/3.2.6/includes/class-translation-render.php#L1314
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/translatepress-multilingual/tags/3.2.6/includes/class-translation-render.php#L1575
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3634273/translatepress-multilingual/trunk/includes/class-translation-render.php
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset?old_path=%2Ftranslatepress-multilingual/tags/3.2.6&new_path=%2Ftranslatepress-multilingual/tags/3.3
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset?reponame=&new=3634273%40translatepress-multilingual%2Ftags%2F3.3&old=3624567%40translatepress-multilingual%2Ftags%2F3.2.6
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