XSS in Cozmoslabs Translatepress – Translate Multilingual Sites With Ai Translation

CVE-2026-17505

The Translate Multilingual sites – TranslatePress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 's' parameter in versions up to, and including, 3.2.5. This is due to the translate_page() function unconditionally replacing the plugin's internal #!trpst# and #!trpen# marker tokens with literal angle brackets across the entire HTML page output after WordPress has already sanitized and escaped user input — allowing the attacker to bypass WordPress's normal HTML escaping by using these tokens, which are not HTML special characters, in the search query. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a specially crafted link.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.008 (55.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-17505?
CVE-2026-17505 is a medium-severity vulnerability in Cozmoslabs Translatepress – Translate Multilingual Sites With Ai Translation, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-08-05.
How severe is CVE-2026-17505?
Medium severity. CVSS v3 base score is 6.1 out of 10.