CVE-2021-24838— AnyComment < 0.3.5 - Open Redirect
Quick assessment
Affected
Unknown AnyComment
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和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用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 plugin是一个应用插件。 WordPress plugin AnyComment 0.3.5 之前版本存在输入验证错误漏洞，该漏洞源于 AnyComment 有一个 API 端口，它通过 redirect 参数将用户输入在不经过验证的情况下传递给 wp_redirect 函数从而导致了
Public Exploits 1
Nuclei · 1
CVE-2021-24838.yaml [template]
Possible ATT&CK Techniques 1 AI
T1189 · Drive-by Compromise
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2021-24838
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
AnyComment < 0.3.5 - Open Redirect
Source: CVE Program / CVE List V5
Vulnerability Description
The AnyComment WordPress plugin before 0.3.5 has an API endpoint which passes user input via the redirect parameter to the wp_redirect() function without being validated first, leading to an Open Redirect issue, which according to the vendor, is a feature.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin AnyComment 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用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 plugin是一个应用插件。 WordPress plugin AnyComment 0.3.5 之前版本存在输入验证错误漏洞，该漏洞源于 AnyComment 有一个 API 端口，它通过 redirect 参数将用户输入在不经过验证的情况下传递给 wp_redirect 函数从而导致了
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 | AnyComment | 0.3.5 ~ 0.3.5 | - |
|
II. Public POCs for CVE-2021-24838
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | WordPress AnyComment plugin before 0.3.5 contains an open redirect vulnerability via an API endpoint which passes user input via the redirect parameter to the wp_redirect() function without being validated. An attacker can redirect a user to a malicious site and possibly obtain sensitive information, modify data, and/or execute unauthorized operations. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-24838.yaml | POC Details |
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2021-24838
请登录查看更多情报信息。
Vendor Advisories for CVE-2021-24838 (1)
Same Patch Batch · Unknown · 2022-01-17 · 11 CVEs total
| CVE-2021-25067 | Landing Page Builder < 1.4.9.6 - Authenticated Reflected Cross-Site Scripting (XSS) | |
| CVE-2021-25065 | Smash Balloon Social Post Feed < 4.1.1 - Authenticated Reflected Cross-Site Scripting (XSS | |
| CVE-2021-25061 | WP Booking System – Booking Calendar < 2.0.15 - Authenticated Reflected Cross-Site Scripti | |
| CVE-2021-25046 | Modern Events Calendar Lite < 6.2.0 - Subscriber+ Category Add Leading to Stored XSS | |
| CVE-2021-25037 | All In One SEO < 4.1.5.3 - Authenticated SQL Injection | |
| CVE-2021-25036 | All In One SEO < 4.1.5.3 - Authenticated Privilege Escalation | |
| CVE-2021-25024 | Event Calendar < 1.1.51 - Reflected Cross-Site Scripting | |
| CVE-2021-25005 | SEUR Oficial < 1.7.0 - Admin+ Stored Cross-Site Scripting | |
| CVE-2021-24909 | ACF Photo Gallery Field < 1.7.5 - Reflected Cross-Site Scripting | |
| CVE-2021-25025 | Event Calendar < 1.1.51 - Subscriber+ Event Creation |
IV. Related Vulnerabilities
Same product: AnyComment
-
CVE-2025-62874
WordPress AnyComment plugin <= 0.3.6 - Broken Access Control -
CVE-2025-60240
WordPress AnyComment plugin <= 0.3.6 - Local File Inclusion -
CVE-2025-48091
WordPress AnyComment plugin <= 0.3.6 - SQL Injection vulnera -
CVE-2022-0279
AnyComment < 0.2.18 - Comment Rating Increase/Decrease via R -
CVE-2022-0134
AnyComment < 0.2.18 - Arbitrary HyperComments Import/Revert
Same vendor: Unknown
-
CVE-2026-93549
CoCart 4.9.0 - 4.9.6 - Administrator Account Creation via RE -
CVE-2026-97332
User Private Files < 2.2.0 - Unauthenticated Private File Di -
CVE-2026-86817
Five Star Business Profile and Schema 2.3.20 - 2.3.21 - Auth -
CVE-2026-17005
Horizontal Scrolling Announcements <= 2.6 - Contributor+ Sto -
CVE-2026-104118
Razorpay for WooCommerce < 4.8.8 - Unauthenticated Order Shi
Same weakness: CWE-601
-
CVE-2026-105128
LaraDashboard before 1.4.8 Open Redirect via Email Template -
CVE-2026-39600
WordPress Aculect AI Companion plugin <= 0.8.1 - Unvalidated -
CVE-2026-55252
OpenRun: Redirect URL validation bypass using //host paths -
CVE-2026-83589
Oauth-proxy: open redirect via /\ and /\t bypass in post-log -
CVE-2026-102090
Kiteworks Core content injection
V. Comments for CVE-2021-24838
No comments yet