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3.8

Drupal Mailer Plus Log can expose data with stolen credentials

CVE-2026-16648 · published 14 days ago
Summary

Versions of the Mailer Plus Log module for Drupal up through 1.2.7 let anyone who has a valid user account write sensitive information into the log files. This makes it easier for an attacker who obtains stolen credentials to see private data that should not be public. Upgrade the module to the latest release, change any compromised passwords, and regularly review log files for unexpected entries.

What to do
  • Update drupal drupal/symfony_mailer_log to version 1.2.7.
  • Update drupal mailer plus log to version 1.2.7 or later.
Affected software
Ecosystem VendorProductAffected versions
Packagist:https://packages.drupal.org/8 drupal drupal/symfony_mailer_log < 1.2.7
Fix: upgrade to 1.2.7
– drupal mailer plus log < 1.2.7
Original advisory text
Mailer Plus Log - Moderately critical - Access bypass - SA-CONTRIB-2026-128
Insertion of Sensitive Information into Log File vulnerability in Drupal Mailer Plus Log allows Remote Services with Stolen Credentials. This issue affects Mailer Plus Log versions: from 0.0.0 to 1.2.7.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
3.8 Low
Exploitation
<1% chance of attack within 30 days
Type
CWE-532Insertion of Sensitive Information into Log File
Timeline
Published22 Oct 2026
Updated4 Nov 2026
First seen2 Sep 2026
Sources
DRUPAL-CONTRIB-2026-128 · OSV
CVE-2026-16648 · NVD
CVE-2026-16648 · MITRE
CVE-2026-16648 · OSV
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