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CVE-2021-24418— Smooth Scroll Page Up/Down Buttons <= 1.4 - Authenticated Stored XSS via psb_positioning

Quick assessment

Affected
Mark Senff Smooth Scroll Page Up/Down Buttons
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。 Smooth Scroll Page Up/Down Buttons WordPress plugin 1.4版本存在跨站脚本漏洞，该漏洞源于插件没有正确清理和验证其psb_positioning设置，允许管理员等高权限用户在其中设置 XSS 负载。

AI Predicted 5.4 Difficulty: Trivial EPSS 0.63% · P47

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2021-24418

Vulnerability Information
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Vulnerability Title
Smooth Scroll Page Up/Down Buttons <= 1.4 - Authenticated Stored XSS via psb_positioning
Source: CVE Program / CVE List V5
Vulnerability Description
The Smooth Scroll Page Up/Down Buttons WordPress plugin through 1.4 does not properly sanitise and validate its psb_positioning settings, allowing high privilege users such as admin to set an XSS payload in it, which will be executed in all pages of the blog
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。 Smooth Scroll Page Up/Down Buttons WordPress plugin 1.4版本存在跨站脚本漏洞，该漏洞源于插件没有正确清理和验证其psb_positioning设置，允许管理员等高权限用户在其中设置 XSS 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
Mark Senff Smooth Scroll Page Up/Down Buttons 1.4 ~ 1.4 -

II. Public POCs for CVE-2021-24418

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-24418

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Vendor Advisories for CVE-2021-24418 (1)

Other References for CVE-2021-24418 (1)

IV. Related Vulnerabilities

Same product: Smooth Scroll Page Up/Down Buttons
Same weakness: CWE-79

V. Comments for CVE-2021-24418

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