CVE-2026-54179: Laravel Backpack CRUD: SingleBase64Image accepts any base64 payload behind a `data:image` prefix — SVG-with-script lands on the public disk

medium Affects backpack/crud. Feed 2026.10.29.3, updated 2026-10-29; published .

Laravel Backpack CRUD: SingleBase64Image accepts any base64 payload behind a `data:image` prefix — SVG-with-script lands on the public disk

Package
backpack/crud Composer
Affected versions
>=6.0.0 and <6.8.14 or >=7.0.0 and <7.0.38
Fixed in
6.8.14, 7.0.38
Severity
medium  CVSS 4.4
Exploitation
not on CISA KEV · EPSS 0% (17.9th percentile)
Published
2026-08-20
Source
osv.dev

References

CWE-434CWE-79
NVD recordbackpack/crud 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