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CVE-2021-24214— OpenID Connect Generic Client 3.8.0-3.8.1 - Reflected Cross Site Scripting (XSS) via Login Error

Quick assessment

Affected
daggerhart OpenID Connect Generic Client
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress是WordPress（Wordpress）基金会的一套使用PHP语言开发的博客平台。该平台支持在PHP和MySQL的服务器上架设个人博客网站。 WordPress插件 OpenID Connect Generic Client 的3.8.0版本和3.8.1版本存在安全漏洞，该漏洞源于在返回登录表单时没有清除登录错误，从而导致了漏洞的触发。

AI Predicted 6.1 Difficulty: Trivial EPSS 1.63% · P74

Public Exploits 1

Nuclei · 1 CVE-2021-24214.yaml [template]

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript
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I. Basic Information for CVE-2021-24214

Vulnerability Information
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Vulnerability Title
OpenID Connect Generic Client 3.8.0-3.8.1 - Reflected Cross Site Scripting (XSS) via Login Error
Source: CVE Program / CVE List V5
Vulnerability Description
The OpenID Connect Generic Client WordPress plugin 3.8.0 and 3.8.1 did not sanitise the login error when output back in the login form, leading to a reflected Cross-Site Scripting issue. This issue does not require authentication and can be exploited with the default configuration.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress是WordPress（Wordpress）基金会的一套使用PHP语言开发的博客平台。该平台支持在PHP和MySQL的服务器上架设个人博客网站。 WordPress插件 OpenID Connect Generic Client 的3.8.0版本和3.8.1版本存在安全漏洞，该漏洞源于在返回登录表单时没有清除登录错误，从而导致了漏洞的触发。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
daggerhart OpenID Connect Generic Client 3.8.0 ~ 3.8.0* -

II. Public POCs for CVE-2021-24214

# POC Description Source Link Shenlong Link
1 WordPress OpenID Connect Generic Client plugin 3.8.0 and 3.8.1 contains a cross-site scripting vulnerability. It does not sanitize the login error when output back in the login form, thereby not requiring authentication, which can be exploited with the default configuration. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-24214.yaml POC Details
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III. Intelligence Information for CVE-2021-24214

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Vendor Advisories for CVE-2021-24214 (1)

IV. Related Vulnerabilities

Same product: OpenID Connect Generic Client
Same vendor: daggerhart
Same weakness: CWE-79

V. Comments for CVE-2021-24214

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