2026-08-25-11: Improper access control in the newsletter module (see GHSA-3r9g-pfhv-3228)

unknown Affects contao/contao. Feed 2026.10.29.1, updated 2026-10-28.

Improper access control in the newsletter module (see GHSA-3r9g-pfhv-3228)

Package: contao/contao Composer
Affected versions: >=5.0.0 and <5.3.50 or >=5.4.0 and <5.7.12
Fixed in: 5.3.50, 5.7.12
Severity: unknown
Exploitation: not on CISA KEV
Source: friendsofphp

References

https://contao.org/en/security-advisories/improper-access-control-in-the-newsletter-module

Am I affected?

Find out in one command. phpwarden checks your composer.lock against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# PHP projects (recommended)
composer require --dev phpwarden/phpwarden
# then
vendor/bin/phpwarden deps composer.lock

# or, without Composer
pipx install phpwarden   &&   phpwarden deps composer.lock

Or keep it checked automatically: GitHub Action · pre-commit hook · GitLab CI · Laravel artisan command

Install docs How findings are ranked

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