For Yii, PHP2Shell remediation requires patching the PHP runtime. The application version helps identify compatibility blockers; it cannot establish exploitability or prove that either CVE is fixed.
Yii - PHP compatibility for the PHP2Shell fix
| Release sample | Declared PHP requirement | Declared patch candidates | Original source |
|---|---|---|---|
| 2.0.55 | >=7.4.0 | repo.packagist.org ↗b900eecdb225 |
Candidates match only this declaration against the first PHP2Shell fixes on supported branches. They do not establish tested compatibility, vendor support or a complete dependency match. PHP compatibility for the PHP2Shell fix ↗
Identify the PHP2Shell repair scope
Files and package identity
yiisoft/yii2
composer.lockprotected/config/web.php
Yii - Remove blockers to patch PHP2Shell
Separate Yii 1, Yii 2 and Yii 3 before choosing any PHP target. The yiisoft/yii2 sample describes one Yii 2 patch, not every 2.0 release or the Yii 1 framework. Check extensions, RBAC rules, ActiveRecord queries, widgets and asset tooling. Migrating between framework generations requires application changes, not just a Composer constraint edit.
Dependencies and custom code to review
Official upgrade documentation ↗Check site functions after the PHP2Shell fix
Inventory before fixing PHP2Shell
Use an authorized working copy.
php -v
php --ini
composer --no-plugins show --locked yiisoft/yii2
composer --no-plugins check-platform-reqs --lock
composer --no-plugins prohibits php 8.3.36 --lockedYii - PHP2Shell patch verification
Verify both CVE fixes in the PHP actually serving this site. Replace or restart old Web workers, queue workers and replicas. A working homepage or a newer CLI binary is insufficient evidence.
3. Restart and verify every instance ↗