CVE-2021-24351— The Plus Addons for Elementor < 4.1.12 - Reflected Cross-Site Scripting (XSS)
Quick assessment
Affected
Unknown The Plus Addons for Elementor Page Builder
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（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。 Elementor Page Builder WordPress 中存在跨站脚本漏洞，该漏洞源于 Plus Addons 的 theplus_more_post AJAX 动作中未清理一些特殊字段。以下产品及版本受到影响：Elementor Page Builder WordPress 4.1.12 之前版本。
Public Exploits 1
Nuclei · 1
CVE-2021-24351.yaml [template]
Possible ATT&CK Techniques 1 AI
T1059.007 · JavaScript
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I. Basic Information for CVE-2021-24351
Vulnerability Information
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Vulnerability Title
The Plus Addons for Elementor < 4.1.12 - Reflected Cross-Site Scripting (XSS)
Source: CVE Program / CVE List V5
Vulnerability Description
The theplus_more_post AJAX action of The Plus Addons for Elementor Page Builder WordPress plugin before 4.1.12 did not properly sanitise some of its fields, leading to a reflected Cross-Site Scripting (exploitable on both unauthenticated and authenticated users)
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
Elementor Page Builder WordPress 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress是WordPress（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。 Elementor Page Builder WordPress 中存在跨站脚本漏洞，该漏洞源于 Plus Addons 的 theplus_more_post AJAX 动作中未清理一些特殊字段。以下产品及版本受到影响：Elementor Page Builder WordPress 4.1.12 之前版本。
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 | The Plus Addons for Elementor Page Builder | 4.1.12 ~ 4.1.12 | - |
|
II. Public POCs for CVE-2021-24351
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | WordPress The Plus Addons for Elementor plugin before 4.1.12 is susceptible to cross-site scripting. The plugin does not properly sanitize some of its fields in the heplus_more_post AJAX action, which is exploitable by both unauthenticated and authenticated users. An attacker can inject arbitrary script in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-24351.yaml | POC Details |
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Vendor Advisories for CVE-2021-24351 (1)
-
https://wpscan.com/vulnerability/2ee62f85-7aea-4b7d-8b2d-5d86d9fb8016 x_refsource_CONFIRM
Other References for CVE-2021-24351 (1)
-
https://theplusaddons.com/changelog/ x_refsource_MISC
Same Patch Batch · Unknown · 2021-06-14 · 16 CVEs total
| CVE-2021-24358 | The Plus Addons for Elementor Page Builder < 4.1.10 - Open Redirect | |
| CVE-2021-24359 | The Plus Addons for Elementor Page Builder < 4.1.11 - Arbitrary Reset Pwd Email Sending | |
| CVE-2021-24360 | Yes/No Chart < 1.0.12 - Authenticated (contributor+) Blind SQL Injection | |
| CVE-2021-24349 | Gallery From Files <= 1.6.0 - Reflected Cross-Site Scripting (XSS) | |
| CVE-2021-24350 | Visitors <= 0.3 - Unauthenticated Stored Cross-Site Scripting (XSS) | |
| CVE-2021-24352 | Simple 301 Redirects by BetterLinks - 2.0.0 – 2.0.3 - Unauthenticated Redirect Export | |
| CVE-2021-24353 | Simple 301 Redirects by BetterLinks - 2.0.0 – 2.0.3 - Unauthenticated Redirect Import | |
| CVE-2021-24354 | Simple 301 Redirects by BetterLinks - 2.0.0-2.0.3 - Arbitrary Plugin Installation | |
| CVE-2021-24355 | Simple 301 Redirects by BetterLinks - 2.0.0 – 2.0.3 - Update and Retrieve Wildcard Value | |
| CVE-2021-24356 | Simple 301 Redirects by BetterLinks - 2.0.0 – 2.0.3 - Arbitrary Plugin Activation | |
| CVE-2021-24341 | Xllentech English Islamic Calendar < 2.6.8 - Authenticated SQL Injection | |
| CVE-2021-24345 | Sendit WP Newsletter <= 2.5.1 - Authenticated (admin+) SQL Injection | |
| CVE-2021-24346 | Stock in & out <= 1.0.4 - Reflected Cross-Site Scripting (XSS) | |
| CVE-2021-24347 | SP Project & Document Manager <2 4.22 - Authenticated Shell Upload | |
| CVE-2021-24348 | Side Menu < 3.1.5 - Authenticated (admin+) SQL Injection |
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V. Comments for CVE-2021-24351
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