Is yiisoft/yii2-gii vulnerable?

Composer yiisoft/yii2-gii has 3 known advisories in the phpwarden feed. Feed 2026.10.29.3, updated 2026-10-29.

3advisories
0critical
0on CISA KEV
1no fix recorded
CVETitleSeverityCVSSAffectedFixed in
CVE-2015-3397JSON Data encoded for use in HTML was not safe to use in IE6/IE7, possible XSS attacksunknown0.0<2.0.42.0.4
CVE-2020-36655Command injection in yiisoft/yii2-giihigh8.8<2.2.22.2.2
CVE-2022-34297Yii2 Gii Cross-site Scripting vulnerabilitymedium5.4<=2.2.4–

Am I affected?

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# 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

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