CVE-2025-51511: Cadmium CMS has a background arbitrary file upload vulnerability

high Affects cadmium-org/cadmium-cms. Feed 2026.10.29.4, updated 2026-10-29; published .

Cadmium CMS has a background arbitrary file upload vulnerability

Package
cadmium-org/cadmium-cms Composer
Affected versions
<=0.4.9
Fixed in
no fix recorded
Severity
high
Exploitation
not on CISA KEV · EPSS 0% (32.1th percentile)
Published
2025-12-23
Source
osv.dev

References

CWE-434
NVD recordcadmium-org/cadmium-cms 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
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Or keep it checked automatically: GitHub Action · pre-commit hook · GitLab CI · Laravel artisan command

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