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VulnerabilityPublished

CVE-2026-126735: Campaignmonitor · This module integrates the Campaign Monitor API into Drupal so that users can

Affects drupal/campaignmonitorSource GCVE Database

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Not known to be exploited : upgrade to 3.0.3 when convenient.

Data as of 11 Nov 2026, 20:18 UTC

Severity
Medium

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

Patch
Available – fixed in 3.0.3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 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 11 Nov 2026.

What to do

Upgrade drupal/campaignmonitor to 3.0.3.

Affected software

ProductAffectedFixed in
Packagist https //packages.drupal.org/8drupal/campaignmonitorAffected
  • <3.0.3
Fixed in
  • 3.0.3

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

AI-suggested

Upgrade the Drupal Campaign Monitor module to version 3.0.3 or later, where the CSRF vulnerability is fixed. Until then, restrict the 'administer campaignmonitor' permission to trusted users and educate them to avoid clicking suspicious links.

Description

The Drupal Campaign Monitor module before version 3.0.3 is vulnerable to cross-site request forgery (CSRF) on its administrative routes. This flaw allows an attacker to craft a malicious link targeting users with the 'administer campaignmonitor' permission, potentially causing unauthorized actions related to Campaign Monitor list management. Exploitation requires the attacker to embed a link with the exact Campaign Monitor list ID and trick an authorized admin user into clicking it.

References

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