GHSA-m2hp-5x78-74mg: Insecure Unserialize Vulnerability in FLOW3

medium Affects typo3/flow. Feed 2026.10.29.4, updated 2026-10-29; published 2024-06-05.

Insecure Unserialize Vulnerability in FLOW3

Package: typo3/flow Composer
Affected versions: >=1.0.0 and <1.0.4
Fixed in: 1.0.4
Severity: medium
Exploitation: not on CISA KEV
Published: 2024-06-05
Source: osv.dev

References

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

Related advisories

CVE-2013-7082 medium TYPO3 Flow Cross-site scripting (XSS) vulnerability same package: typo3/flow
2012-03-28 unknown Insecure Unserialize Vulnerability in FLOW3 same package: typo3/flow
2015-11-23 unknown Arbitrary file upload and XML External Entity processing same package: typo3/flow
2016-11-01 unknown Time-Based Information Disclosure Vulnerability in Flow same package: typo3/flow
2017-04-12 unknown Flow Bugfix Releases for Entity Security same package: typo3/flow
GHSA-2p4f-vc9q-r5vp medium Typo3 Arbitrary file upload and XML External Entity processing same package: typo3/flow