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CVE-2021-24439— Browser Screenshots < 1.7.6 - Contributor+ Stored XSS

Quick assessment

Affected
Unknown Browser Screenshots
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
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 plugin是WordPress开源的一个应用插件。 WordPress plugin Browser Screenshots 存在跨站脚本漏洞，该漏洞源于Browser Screenshots的图像类参数没有被转义。

AI Predicted 8.1 Difficulty: Trivial EPSS 0.62% · P47

Possible ATT&CK Techniques 2 AI

T1014 · Rootkit T1059.007 · JavaScript
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I. Basic Information for CVE-2021-24439

Vulnerability Information
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Vulnerability Title
Browser Screenshots < 1.7.6 - Contributor+ Stored XSS
Source: CVE Program / CVE List V5
Vulnerability Description
The Browser Screenshots WordPress plugin before 1.7.6 allowed authenticated users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks as the image_class parameter of the browser-shot shortcode was not escaped.
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 plugin Browser Screenshots 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 plugin是WordPress开源的一个应用插件。 WordPress plugin Browser Screenshots 存在跨站脚本漏洞，该漏洞源于Browser Screenshots的图像类参数没有被转义。
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
Unknown Browser Screenshots 1.7.6 ~ 1.7.6 -

II. Public POCs for CVE-2021-24439

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III. Intelligence Information for CVE-2021-24439

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Vendor Advisories for CVE-2021-24439 (1)

Same Patch Batch · Unknown · 2021-07-12 · 10 CVEs total

CVE-2021-24454 YOP Poll < 6.2.8 - Stored Cross-Site Scripting
CVE-2021-24441 Sign-up Sheets < 1.0.14 - Authenticated CSV Injection
CVE-2021-24440 Sign-up Sheets < 1.0.14 - Authenticated Stored Cross-Site Scripting (XSS)
CVE-2021-24434 Glass <= 1.3.2 - CSRF to Stored Cross-Site Scripting (XSS)
CVE-2021-24426 Backup by 10Web <= 1.0.20 - Reflected Cross-Site Scripting (XSS)
CVE-2021-24424 WP Reset < 1.90 - Authenticated Stored XSS
CVE-2021-24421 WP JobSearch < 1.7.4 - Authenticated Stored XSS
CVE-2021-24420 Request a Quote < 2.3.4 - Authenticated Stored XSS
CVE-2021-24419 WP YouTube Lyte < 1.7.16 - Authenticated Stored XSS

IV. Related Vulnerabilities

Same vendor: Unknown
Same weakness: CWE-79

V. Comments for CVE-2021-24439

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