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CVE-2022-39357: Prototype pollution in Snowboard framework

high Affects wintercms/winter. Feed 2026.10.29.4, updated 2026-10-29; published ; advisory modified .

Prototype pollution in Snowboard framework

Package
wintercms/winter Composer
Affected versions
>=1.1.8 and <1.1.10 or >=1.2.0 and <1.2.1
Fixed in
1.1.10, 1.2.1
Severity
high  CVSS 8.1
Exploitation
not on CISA KEV · EPSS 1% (71.8th percentile)
Published
2022-10-27
Source
osv.dev

References

CWE-1321
NVD recordwintercms/winter 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

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