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VulnerabilityPublished

CVE-2026-122068: Highlight js · This module enables you to add syntax-highlighted code snippets to content using

Affects drupal/highlight_jsSource GCVE Database

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Not known to be exploited : upgrade to 1.3.1 soon.

Data as of 4 Nov 2026, 21:07 UTC

Severity
High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

Patch
Available – fixed in 1.3.1

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 4 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 4 Nov 2026.

What to do

Upgrade drupal/highlight_js to 1.3.1.

Affected software

ProductAffectedFixed in
Packagist https //packages.drupal.org/8drupal/highlight_jsAffected
  • <1.3.1
Fixed in
  • 1.3.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade the 'highlight_js' module to version 1.3.1 or later, where the vulnerability has been fixed. No other mitigation steps are indicated.

Description

The Drupal module 'highlight_js' allows adding syntax-highlighted code snippets using CKEditor 5. Versions prior to 1.3.1 do not properly validate input to the CKEditor 5 preview endpoint, resulting in a reflected cross-site scripting (XSS) vulnerability. This flaw was fixed in version 1.3.1.

References

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