Just Highlight Plugin up to 1.0.3 on WordPress Setting Highlight Color cross site scripting

Summaryinfo

A vulnerability marked as problematic has been reported in Just Highlight Plugin up to 1.0.3 on WordPress. Affected by this issue is some unknown functionality of the component Setting Handler. Performing a manipulation of the argument Highlight Color results in cross site scripting. This vulnerability is reported as CVE-2025-13311. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability classified as problematic has been found in Just Highlight Plugin up to 1.0.3 on WordPress. This affects an unknown code of the component Setting Handler. The manipulation of the argument Highlight Color with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. The summary by CVE is:

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.

The advisory is shared at wordfence.com. This vulnerability is uniquely identified as CVE-2025-13311. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are required for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-199567). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• WordPress Plugin

Name

• Just Highlight Plugin

Version

• 1.0.0
• 1.0.1
• 1.0.2
• 1.0.3

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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