Object Injection Vulnerability in Polylang Plugin for WordPress by WP SYNTEX
CVE-2026-97278

7.2HIGH

Key Information:

Vendor

WordPress
Status
Polylang
Vendor
CVE Published:
14 October 2026

What is CVE-2026-97278?

A deserialization of untrusted data vulnerability exists in the Polylang plugin for WordPress, enabling attackers to exploit object injection risks. This flaw impacts all versions from n/a through 3.8.9, potentially allowing malicious actors to manipulate underlying application logic and gain unauthorized access to sensitive data. It is crucial for users of the Polylang plugin to update to the latest version to mitigate this security issue.

Affected Version(s)

Polylang 0 <= 3.8.9

References

https://patchstack.com/database/wordpress/plugin/polylang...
vdb-entry

CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ananda Dhakal (Patchstack)
.