CVE-2026-96631: AdminNeo has Cookie Attribute Injection via Unsanitized X-Forwarded-Prefix in Set-Cookie Headers

high Affects adminneo-org/adminneo. Feed 2026.11.03.2, updated 2026-11-03; published .

AdminNeo has Cookie Attribute Injection via Unsanitized X-Forwarded-Prefix in Set-Cookie Headers

Package
adminneo-org/adminneo Composer
Affected versions
>=4.6.0 and <5.5.1
Fixed in
5.5.1
Severity
high  CVSS 8.2
Exploitation
not on CISA KEV
Published
2026-10-30
Source
osv.dev

References

CWE-113CWE-20
NVD recordadminneo-org/adminneo advisories

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