Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2020-4046— Authenticated XSS through embed block in WordPress

Quick assessment

Affected
WordPress wordpress-develop
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中存在跨站脚本漏洞。该漏洞源于WEB应用缺少对客户端数据的正确验证。攻击者可利用该漏洞执行客户端代码。以下产品及版本受到影响：WordPress 5.3.4版本，5.2.7版本，5.1.6版本，5.0.10版本，4.9.15版本，4.8.14版本，4.7.18， 4.6.19版本，4.5.22版本，4.4.23版本，4.3.24版本，4.2.28版本

CVSS 5.4 · Medium EPSS 2.13% · P81
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2020-4046

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Authenticated XSS through embed block in WordPress
Source: CVE Program / CVE List V5
Vulnerability Description
In affected versions of WordPress, users with low privileges (like contributors and authors) can use the embed block in a certain way to inject unfiltered HTML in the block editor. When affected posts are viewed by a higher privileged user, this could lead to script execution in the editor/wp-admin. This has been patched in version 5.4.2, along with all the previously affected versions via a minor release (5.3.4, 5.2.7, 5.1.6, 5.0.10, 4.9.15, 4.8.14, 4.7.18, 4.6.19, 4.5.22, 4.4.23, 4.3.24, 4.2.28, 4.1.31, 4.0.31, 3.9.32, 3.8.34, 3.7.34).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
Web页面中脚本相关HTML标签转义处理不恰当(基本跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress 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中存在跨站脚本漏洞。该漏洞源于WEB应用缺少对客户端数据的正确验证。攻击者可利用该漏洞执行客户端代码。以下产品及版本受到影响：WordPress 5.3.4版本，5.2.7版本，5.1.6版本，5.0.10版本，4.9.15版本，4.8.14版本，4.7.18， 4.6.19版本，4.5.22版本，4.4.23版本，4.3.24版本，4.2.28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
WordPress wordpress-develop >= 5.4.0, < 5.4.2 -

II. Public POCs for CVE-2020-4046

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2020-4046

请登录查看更多情报信息。

Vendor Advisories for CVE-2020-4046 (2)

Mailing List Discussions for CVE-2020-4046 (3)

Other References for CVE-2020-4046 (1)

Same Patch Batch · WordPress · 2020-06-12 · 5 CVEs total

CVE-2020-4047 6.8 MEDIUM Authenticated XSS via media attachment page in WordPress
CVE-2020-4048 5.7 MEDIUM Open redirect in wp_validate_redirect() in WordPress
CVE-2020-4050 3.5 LOW set-screen-option filter misuse by plugins leading to privilege escalation in WordPress
CVE-2020-4049 2.4 LOW Authenticated self-XSS via theme uploads in WordPress

IV. Related Vulnerabilities

Same product: wordpress-develop
Same vendor: WordPress
Same weakness: CWE-80

V. Comments for CVE-2020-4046

No comments yet

Leave a comment