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CVE-2021-24275— Popup by Supsystic < 1.10.5 - Reflected Cross-Site scripting (XSS)

Quick assessment

Affected
Supsystic Popup by Supsystic
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 插件是WordPress开源的一个应用插件。 Supsystic WordPress plugin 1.10.5之前版本存在跨站脚本漏洞，该漏洞源于选项卡参数输出到属性中之前，没有对其进行清理处理。

AI Predicted 6.1 Difficulty: Easy EPSS 18.16% · P97

Public Exploits 2

ExploitDB · 1 EDB-50346 [webapps]
Nuclei · 1 CVE-2021-24275.yaml [template]
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I. Basic Information for CVE-2021-24275

Vulnerability Information
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Vulnerability Title
Popup by Supsystic < 1.10.5 - Reflected Cross-Site scripting (XSS)
Source: CVE Program / CVE List V5
Vulnerability Description
The Popup by Supsystic WordPress plugin before 1.10.5 did not sanitise the tab parameter of its options page before outputting it in an attribute, leading to a reflected Cross-Site Scripting issue
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
Supsystic WordPress plugin 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress是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 插件是WordPress开源的一个应用插件。 Supsystic WordPress plugin 1.10.5之前版本存在跨站脚本漏洞，该漏洞源于选项卡参数输出到属性中之前，没有对其进行清理处理。
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
Supsystic Popup by Supsystic 1.10.5 ~ 1.10.5 -

II. Public POCs for CVE-2021-24275

# POC Description Source Link Shenlong Link
1 WordPress Popup by Supsystic before 1.10.5 did not sanitize the tab parameter of its options page before outputting it in an attribute, leading to a reflected cross-site scripting issue. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-24275.yaml POC Details
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III. Intelligence Information for CVE-2021-24275

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Vendor Advisories for CVE-2021-24275 (1)

Exploits & Public PoCs for CVE-2021-24275 (1)

Same Patch Batch · Supsystic · 2021-05-05 · 3 CVEs total

CVE-2021-24274 Ultimate Maps by Supsystic < 1.2.5 - Reflected Cross-Site scripting (XSS)
CVE-2021-24276 Contact Form by Supsystic < 1.7.15 - Reflected Cross-Site scripting (XSS)

IV. Related Vulnerabilities

Same product: Popup by Supsystic
Same vendor: Supsystic
Same weakness: CWE-79

V. Comments for CVE-2021-24275

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