CVE-2021-24859— User Meta Shortcodes <= 0.5 - Contributor+ Unauthorized Arbitrary User Metadata Access
Quick assessment
Affected
Unknown User meta shortcodes
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。 WordPress Plugins User Meta Shortcodes 存在访问控制错误漏洞，该漏洞源于用户元短码WordPress插件注册了一个短码，允许任何角色低至贡献者的用户通过指定用户登录作为参数来访问其他用户的元数据，这使得WP实例容易受到数据外过滤(包括密码散列)的影响。
Possible ATT&CK Techniques 1 AI
T1005 · Data from Local System
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2021-24859
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
User Meta Shortcodes <= 0.5 - Contributor+ Unauthorized Arbitrary User Metadata Access
Source: CVE Program / CVE List V5
Vulnerability Description
The User Meta Shortcodes WordPress plugin through 0.5 registers a shortcode that allows any user with a role as low as contributor to access other users metadata by specifying the user login as a parameter. This makes the WP instance vulnerable to data extrafiltration, including password hashes
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress 插件访问控制错误漏洞
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。 WordPress Plugins User Meta Shortcodes 存在访问控制错误漏洞，该漏洞源于用户元短码WordPress插件注册了一个短码，允许任何角色低至贡献者的用户通过指定用户登录作为参数来访问其他用户的元数据，这使得WP实例容易受到数据外过滤(包括密码散列)的影响。
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 | User meta shortcodes | 0.5 ~ 0.5 | - |
|
II. Public POCs for CVE-2021-24859
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2021-24859
请登录查看更多情报信息。
Vendor Advisories for CVE-2021-24859 (1)
Same Patch Batch · Unknown · 2021-12-13 · 34 CVEs total
| CVE-2021-24790 | Contact Form Advanced Database <= 1.0.8 - Unauthorised AJAX Calls | |
| CVE-2021-24848 | Mediamatic < 2.8.1 - Subscriber+ SQL Injection | |
| CVE-2021-24845 | Improved Include Page <= 1.2 - Contributor+ Arbitrary Posts/Pages Access | |
| CVE-2021-24836 | Temporary Login Without Password < 1.7.1 - Subscriber+ Plugin's Settings Update | |
| CVE-2021-24819 | Page/Post Content Shortcode <= 1.0 - Contributor+ Arbitrary Posts/Pages Access | |
| CVE-2021-24818 | WP Limits <= 1.0 - Plugin's Settings Update via CSRF | |
| CVE-2021-24817 | Ultimate NoFollow <= 1.4.8 - Contributor+ Stored Cross-Site Scripting | |
| CVE-2021-24795 | Filter Portfolio Gallery <= 1.5 - Arbitrary Gallery Deletion via CSRF | |
| CVE-2021-24792 | Shiny Buttons <= 1.1.0 - Unauthenticated Stored Cross-Site Scripting | |
| CVE-2021-24855 | Display Post Metadata < 1.5.0 - Contributor+ Stored Cross-Site Scripting | |
| CVE-2021-24784 | WP Admin Logo Changer <= 1.0 - Plugin's Settings Update via CSRF | |
| CVE-2021-24782 | Flex Local Fonts <= 1.0.0 - Admin+ Stored Cross-Site-Scripting | |
| CVE-2021-24780 | Single Post Exporter <= 1.1.1 - Plugin's Settings Update via CSRF | |
| CVE-2021-24771 | Inspirational Quote Rotator <= 1.0.0 - Admin+ Stored Cross-Site Scripting | |
| CVE-2021-24756 | WP System Log < 1.0.21 - Unauthenticated Stored Cross-Site Scripting | |
| CVE-2021-24747 | SEO Booster < 3.8 - Admin+ SQL Injection | |
| CVE-2021-24705 | NEX-Forms < 8.4.3 - Stored Cross-Site Scripting via CSRF | |
| CVE-2021-24972 | Pixel Cat Lite < 2.6.3 - Admin+ Stored Cross-Site Scripting | |
| CVE-2021-24857 | ToTop Link <= 1.7.1 - Unauthenticated PHP Object Injection | |
| CVE-2021-24861 | Quotes Collection <= 2.5.2 - Admin+ SQL Injection |
Showing top 20 of 34 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same vendor: Unknown
-
CVE-2026-94274
YayReviews 1.0.4 - 1.4.0 - Unauthenticated Sensitive Data Di -
CVE-2026-94297
Media Library Organizer 2.0.4 - 2.1.3 - Contributor+ Arbitra -
CVE-2026-96886
Course Booking System < 7.0.9 - Unauthenticated Attendee PII -
CVE-2026-97316
Broken Link Notifier 1.3.1 - 2.0.0 - Unauthenticated SSRF vi -
CVE-2026-92424
Content Egg < 11.9.0 - Contributor+ Stored XSS via Import Qu
Same weakness: CWE-284
-
CVE-2026-102132
Kiteworks Core Privilege Escalation through Improper Access -
CVE-2026-55494
Tugtainer: Unauthenticated access to Tugtainer Agent Docker -
CVE-2026-55181
Tugtainer: OIDC login remains accessible when OIDC_ENABLED i -
CVE-2026-103239
MISP Tag Collection Save Allows Privilege Escalation via Sib -
CVE-2026-92226
Joomla! Core - [20260913] - Core - Improper ACL checks for v
V. Comments for CVE-2021-24859
No comments yet