CVE-2026-97279
Received Received - Intake

Contributor XSS in Polylang Plugin

Publication date: 2026-09-30

Last updated on: 2026-09-30

Assigner: Patchstack

Description
Contributor Cross Site Scripting (XSS) in Polylang <= 3.8.9 versions.

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Meta Information

Published
2026-09-30
Last Modified
2026-09-30
Generated
2026-09-30
AI Q&A
2026-09-30
EPSS Evaluated
N/A
NVD
CVE-2026-97279
EUVD
EUVD-2026-89924

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
polylang polylang to 3.8.9 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This is a Contributor Cross Site Scripting (XSS) vulnerability in the Polylang WordPress plugin versions up to 3.8.9. It allows a privileged user to inject malicious scripts via crafted input, which executes in the context of other users.

Detection Guidance

To detect this vulnerability, check the installed version of the Polylang plugin in your WordPress site. If the version is 3.8.9 or lower, the system is vulnerable. Use WordPress admin panel or run a command like 'wp plugin list' in the WordPress directory to verify the version.

Impact Analysis

An attacker could steal session cookies, perform actions on behalf of users, or deface the website. Exploitation requires a privileged user to interact with a malicious link or page.

Compliance Impact

XSS vulnerabilities can lead to unauthorized data access or modification, potentially violating GDPR (data protection) and HIPAA (health data privacy) by exposing sensitive user information.

Mitigation Strategies

Immediately update the Polylang plugin to version 3.8.10 or later. Enable auto-update for vulnerable plugins if using Patchstack. Remove or restrict access for untrusted users until the update is applied.

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