CVE-2021-43808: Laravel Framework XSS in Blade templating engine

medium Affects illuminate/view, laravel/framework. Feed 2026.10.29.4, updated 2026-10-29; published ; advisory modified .

Laravel Framework XSS in Blade templating engine

Package
illuminate/view Composer
Affected versions
<6.20.42 or >=7.0.0 and <7.30.6 or >=8.0.0 and <8.75.0
Fixed in
6.20.42, 7.30.6, 8.75.0
Severity
medium  CVSS 6.1
Exploitation
not on CISA KEV · EPSS 1% (57.3th percentile)
Published
2021-12-08
Source
osv.dev

References

Laravel Framework XSS in Blade templating engine

Package
laravel/framework Composer
Affected versions
<6.20.42 or >=7.0.0 and <7.30.6 or >=8.0.0 and <8.75.0
Fixed in
6.20.42, 7.30.6, 8.75.0
Severity
medium  CVSS 6.1
Exploitation
not on CISA KEV · EPSS 1% (57.3th percentile)
Published
2021-12-08
Source
osv.dev

References

CWE-327CWE-79
NVD recordilluminate/view advisorieslaravel/framework 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

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pipx install phpwarden   &&   phpwarden deps composer.lock

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

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