CVE-2025-13311

The Just Highlight plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Highlight Color' setting in all versions up to, and including, 1.0.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the plugin's settings page.

CVSS 3.1

4.4CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 12% of CVEs (scores of 2026-10-25)

CWE

CWE-79

Published

2025-11-25

Modified

2026-10-18

Record from

the NVD, synced 2026-10-19

References

• https://plugins.trac.wordpress.org/browser/just-highlight/tags/1.0.3/just-highlight.php#L169
• https://plugins.trac.wordpress.org/browser/just-highlight/trunk/just-highlight.php#L169
• https://www.wordfence.com/threat-intel/vulnerabilities/id/d21187bc-5bd0-49b9-9ef2-6654263cd93c?source=cve

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