Vulnerability · Published Nov 25, 2025 · Assigned by Wordfence

CVE-2025-13311Just Highlight <= 1.0.3 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'Highlight Color' Setting

Medium 4.4

In plain English

A medium-severity cross-site scripting in Just Highlight from sigalitam. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).

Severity (CVSS 3.1)4.4Medium

Exploit odds (30 days)0.2%top 85.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
sigalitam	Just Highlight	0 – through 1.0.3

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

In plain English

Official description

Affected products (as reported)

References