Yii 2 is a PHP application framework. During internal penetration testing of a product based on Yii2, users discovered a Cross-site Scripting (XSS) vulnerability within the framework itself. This issue is relevant for the latest version of Yii2 (2.0.49.3). This issue lies in the mechanism for displaying function argument values in the stack trace. The vulnerability manifests when an argument's value exceeds 32 characters. For convenience, argument values exceeding this limit are truncated and displayed with an added "...". The full argument value becomes visible when hovering over it with the mouse, as it is displayed in the title attribute of a span tag. However, the use of a double quote (") allows an attacker to break out of the title attribute's value context and inject their own attributes into the span tag, including malicious JavaScript code through event handlers such as onmousemove. This vulnerability allows an attacker to execute arbitrary JavaScript code in the security con…

yii2-authclient is an extension that adds OpenID, OAuth, OAuth2 and OpenId Connect consumers for the Yii framework 2.0. In yii2-authclient prior to version 2.2.15, the Oauth2 PKCE implementation is vulnerable in 2 ways. First, the `authCodeVerifier` should be removed after usage (similar to `authState`). Second, there is a risk for a `downgrade attack` if PKCE is being relied on for CSRF protection. Version 2.2.15 contains a patch for the issue. No known workarounds are available.

yii2-authclient is an extension that adds OpenID, OAuth, OAuth2 and OpenId Connect consumers for the Yii framework 2.0. In yii2-authclient prior to version 2.2.15, the Oauth1/2 `state` and OpenID Connect `nonce` is vulnerable for a `timing attack` since it is compared via regular string comparison (instead of `Yii::$app->getSecurity()->compareString()`). Version 2.2.15 contains a patch for the issue. No known workarounds are available.

Yii is an open source PHP web framework. yiisoft/yii before version 1.1.29 are vulnerable to Remote Code Execution (RCE) if the application calls `unserialize()` on arbitrary user input. An attacker may leverage this vulnerability to compromise the host system. A fix has been developed for the 1.1.29 release. Users are advised to upgrade. There are no known workarounds for this vulnerability.

web\ViewAction in Yii (aka Yii2) 2.x before 2.0.5 allows attackers to execute any local .php file via a relative path in the view parameeter.

Yii 2 v2.0.45 was discovered to contain a cross-site scripting (XSS) vulnerability via the endpoint /books. NOTE: this is disputed by the vendor because the cve-2022-31454-8e8555c31fd3 page does not describe why /books has a relationship to Yii 2.

Cross Site Scripting vulnerability in YiiCMS v.1.0 allows a remote attacker to execute arbitrary code via the news function.

SQL injection vulnerability found in Yii Framework Yii 2 Framework before v.2.0.47 allows the a remote attacker to execute arbitrary code via the runAction function. NOTE: the software maintainer's position is that the vulnerability is in third-party code, not in the framework.

A vulnerability was found in himiklab yii2-jqgrid-widget up to 1.0.7. It has been declared as critical. This vulnerability affects the function addSearchOptionsRecursively of the file JqGridAction.php. The manipulation leads to sql injection. Upgrading to version 1.0.8 is able to address this issue. The name of the patch is a117e0f2df729e3ff726968794d9a5ac40e660b9. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-217564.

** UNSUPPORTED WHEN ASSIGNED ** A vulnerability was found in vova07 Yii2 FileAPI Widget up to 0.1.8. It has been declared as problematic. Affected by this vulnerability is the function run of the file actions/UploadAction.php. The manipulation of the argument file leads to cross site scripting. The attack can be launched remotely. Upgrading to version 0.1.9 is able to address this issue. The identifier of the patch is c00d1e4fc912257fca1fce66d7a163bdbb4c8222. It is recommended to upgrade the affected component. The identifier VDB-217141 was assigned to this vulnerability. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.