CVE-2024-37888: The Open Link CKEditor plugin has a cross-site scripting (XSS) vulnerability in open link functionality

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-06-14 · updated 2026-06-17
Weakness: CWE-79

Description

The Open Link is a CKEditor plugin, extending context menu with a possibility to open link in a new tab. The vulnerability allowed to execute JavaScript code by abusing link href attribute. It affects all users using the Open Link plugin at version < **1.0.5**.

Affected products

mlewand ckeditor-plugin-openlink: before 1.0.5 — fixed in 1.0.5

How to fix

Upgrade to a fixed version: mlewand ckeditor-plugin-openlink 1.0.5. Check the vendor advisory for mitigations.

References

https://github.com/mlewand/ckeditor-plugin-openlink/security/advisories/GHSA-rhxf-gvmh-hrxm
https://github.com/mlewand/ckeditor-plugin-openlink/security/advisories/GHSA-rhxf-gvmh-hrxm

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