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CVE-2021-24592— Sitewide Notice WP < 2.3 - Authenticated Stored XSS

Quick assessment

Affected
Unknown Sitewide Notice WP
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 插件是WordPress开源的一个应用插件。 WordPress插件 Sitewide Notice 2.3之前版本存在跨站脚本漏洞，该漏洞源于插件在将其内容输出到前端页面之前，并未对其某些设置进行有效的验证和转义，这允许高权限用户执行跨站脚本攻击，即便未过滤的html功能被禁止也可以进行攻击。

AI Predicted 5.4 Difficulty: Moderate EPSS 0.62% · P47

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2021-24592

Vulnerability Information
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Vulnerability Title
Sitewide Notice WP < 2.3 - Authenticated Stored XSS
Source: CVE Program / CVE List V5
Vulnerability Description
The Sitewide Notice WP WordPress plugin before 2.3 does not sanitise some of its settings before outputting them in frontend pages, allowing high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed
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 插件是WordPress开源的一个应用插件。 WordPress插件 Sitewide Notice 2.3之前版本存在跨站脚本漏洞，该漏洞源于插件在将其内容输出到前端页面之前，并未对其某些设置进行有效的验证和转义，这允许高权限用户执行跨站脚本攻击，即便未过滤的html功能被禁止也可以进行攻击。
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 Sitewide Notice WP 2.3 ~ 2.3 -

II. Public POCs for CVE-2021-24592

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III. Intelligence Information for CVE-2021-24592

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Vendor Advisories for CVE-2021-24592 (1)

Same Patch Batch · Unknown · 2021-08-30 · 10 CVEs total

CVE-2021-24437 Favicon by RealFaviconGenerator <= 1.3.20 - Reflected Cross-Site Scripting (XSS)
CVE-2021-24438 ShareThis Dashboard for Google Analytics < 2.5.2 - Reflected Cross-Site Scripting (XSS)
CVE-2021-24528 FluentSMTP < 2.0.1 - Authenticated Stored XSS
CVE-2021-24579 Bold Page Builder < 3.1.6 - PHP Object Injection
CVE-2021-24580 Side Menu Lite < 2.2.6 - Authenticated SQL Injection
CVE-2021-24581 Blue Admin <= 21.06.01 - CSRF to Stored Cross-Site Scripting (XSS)
CVE-2021-24593 Business Hours Indicator < 2.3.5 - Authenticated Stored XSS
CVE-2021-24665 WP Video Lightbox < 1.9.3 - Contributor+ Stored Cross-Site Scripting
CVE-2021-24667 Gallery Blocks with Lightbox < 2.2.1- Authenticated Stored Cross-Site Scripting

IV. Related Vulnerabilities

Same product: Sitewide Notice WP
Same vendor: Unknown
Same weakness: CWE-79

V. Comments for CVE-2021-24592

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