CVE-2025-64353

WordPress Polylang plugin <= 3.7.3 - Deserialization of untrusted data vulnerability

State: Published
Severity: 8.8 High
Published: Oct 31, 2025
Updated: Apr 28, 2026
Reserved: Oct 31, 2025

Description

Deserialization of Untrusted Data vulnerability in Chouby Polylang polylang allows Object Injection.This issue affects Polylang: from n/a through <= 3.7.3.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Patchstack

Weaknesses

CWE-502 Deserialization of Untrusted Data

Affected Products

Product	Versions
PolylangChouby	3.7.3 and earlierAffectedfrom 3.7.4Not affected

References

https://patchstack.com/database/Wordpress/Plugin/polylang/vulnerability/wordpress-polylang-plugin-3-7-3-deserialization-of-untrusted-data-vulnerability?_s_id=cvevdb-entry

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