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8.8

Polylang: Malicious data could be injected into admin panel

CVE-2025-64353 · published 1 year ago
Summary

The Polylang plugin for WordPress has a security issue that could allow an attacker to inject malicious data into the admin panel. This could potentially allow an attacker to take control of the website. To fix this, update Polylang to a version higher than 3.7.3.

Original advisory text
Deserialization of Untrusted Data vulnerability in Chouby Polylang polylang allows Object Injection.This issue affects Polylang: from n/a through <= 3.7.3.
Deserialization of Untrusted Data vulnerability in Chouby Polylang polylang allows Object Injection.This issue affects Polylang: from n/a through <= 3.7.3.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
8.8 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-502Deserialization of Untrusted Data
Timeline
Published31 Oct 2025
Updated4 Nov 2026
First seen7 Mar 2026
Sources
CVE-2025-64353 · NVD
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