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CVE-2021-24535— Light Messages <= 1.0 - CSRF to Stored XSS

Quick assessment

Affected
Unknown Light Messages
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 插件是WordPress开源的一个应用插件。 Light Messages WordPress plugin 1.0机之前版本存在跨站脚本漏洞，攻击者可以让已登录的管理员将设置更新为任意值，并在消息内容中设置跨站点脚本负载。

AI Predicted 8.1 Difficulty: Easy EPSS 0.41% · P33
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I. Basic Information for CVE-2021-24535

Vulnerability Information
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Vulnerability Title
Light Messages <= 1.0 - CSRF to Stored XSS
Source: CVE Program / CVE List V5
Vulnerability Description
The Light Messages WordPress plugin through 1.0 is lacking CSRF check when updating it's settings, and is not sanitising its Message Content in them (even with the unfiltered_html disallowed). As a result, an attacker could make a logged in admin update the settings to arbitrary values, and set a Cross-Site Scripting payload in the Message Content. Depending on the options set, the XSS payload can be triggered either in the backend only (in the plugin's settings), or both frontend and backend.
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 插件跨站脚本漏洞
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。 Light Messages WordPress plugin 1.0机之前版本存在跨站脚本漏洞，攻击者可以让已登录的管理员将设置更新为任意值，并在消息内容中设置跨站点脚本负载。
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 Light Messages 1.0 ~ 1.0 -

II. Public POCs for CVE-2021-24535

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III. Intelligence Information for CVE-2021-24535

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Vendor Advisories for CVE-2021-24535 (1)

Same Patch Batch · Unknown · 2021-08-16 · 20 CVEs total

CVE-2021-24518 WPFront Notification Bar < 2.0.0.07176 - Authenticated Stored XSS
CVE-2021-24362 Photo Gallery < 1.5.75 - Stored Cross-Site Scripting via Uploaded SVG
CVE-2021-24363 Photo Gallery < 1.5.75 - File Upload Path Traversal
CVE-2021-24380 Shantz WordPress QOTD <= 1.2.2 - Arbitrary Setting Update via CSRF
CVE-2021-24411 Social Tape <= 1.0 - CSRF to Stored XSS
CVE-2021-24410 Telugu Bible Verse Daily <= 1.0 - CSRF to Stored XSS
CVE-2021-24445 My Site Audit <= 1.2.4 - Authenticated Stored Cross-Site Scripting (XSS)
CVE-2021-24466 Verse-O-Matic <= 4.1.1 - CSRF to Stored XSS
CVE-2021-24471 YouTube Embed < 5.2.2 - Contributor+ Stored XSS
CVE-2021-24512 Video Posts Webcam Recorder < 3.2.4 - Authenticated Reflected XSS
CVE-2021-24548 Mimetic Books <= 0.2.13 - Authenticated Stored Cross-Site Scripting (XSS)
CVE-2021-24519 Vik Rent Car < 1.1.10 - Authenticated Stored Cross-Site Scripting (XSS)
CVE-2021-24526 Form Maker < 1.13.60 - Authenticated Stored XSS
CVE-2021-24527 Profile Builder < 3.4.9 - Admin Access via Password Reset
CVE-2021-24534 PhoneTrack Meu Site Manager <= 0.1 - Authenticated Stored XSS
CVE-2021-24536 Custom Login Redirect <= 1.0.0 - CSRF to Stored XSS
CVE-2021-24540 Wonder Video Embed < 1.8 - Contributor+ Stored XSS
CVE-2021-24538 Current Book <= 1.0.1 - Authenticated Stored Cross-Site Scripting (XSS)
CVE-2021-24541 Wonder PDF Embed < 1.7 - Contributor+ Stored XSS

IV. Related Vulnerabilities

Same vendor: Unknown
Same weakness: CWE-79

V. Comments for CVE-2021-24535

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