AnyComment <= 0.3.4 — Open Redirect via redirect parameter
CVE-2021-24838Published · Updated Action summary
Affected: <0.3.5Update to 0.3.5 or newer
All remediation steps- Severity
- Medium5.4
- CVSS
- 5.4CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:LWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:RUser interaction- Required
S:UScope- Unchanged
C:NConfidentiality- None
I:LIntegrity- Low
A:LAvailability- Low
- Weakness
- CWE-601 Open Redirect
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
AnyComment anycomment
- Affected< 0.3.5
- Patched in0.3.5
Update to 0.3.5 or newer.
You are affected if you run < 0.3.5. Version 0.3.5 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under AnyComment.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 0.3.5, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch AnyComment to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Brandon James Roldan (tomorrowisnew).
The AnyComment plugin for WordPress is vulnerable to Open Redirect in versions up to, and including, 0.3.4. This is due to an API endpoint which passes user input via the redirect parameter to the wp_redirect() function without being validated first. This makes it possible for unauthenticated attackers to create redirect links using the site.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in AnyComment
All 9| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via 'email' Parameter ≤0.3.6No patch available | CVE-2026-103422 | |
| Medium4.3 | Missing Authorization ≤0.3.6No patch available | CVE-2025-62874 | |
| Medium6.5 | Authenticated (Subscriber+) SQL Injection ≤0.3.6No patch available | CVE-2025-48091 | |
| High8.1 | Unauthenticated Local File Inclusion ≤0.3.6No patch available | CVE-2025-60240 | |
| Medium6.1 | Reflected Cross-Site Scripting via fs_request_get ≤1.9.2No patch available | CVE-2023-33999 |
- High7.2Unauthenticated Stored Cross-Site Scripting via 'email' Parameter
≤0.3.6No patch available
- Medium4.3Missing Authorization
≤0.3.6No patch available
- Medium6.5Authenticated (Subscriber+) SQL Injection
≤0.3.6No patch available
- High8.1Unauthenticated Local File Inclusion
≤0.3.6No patch available
- Medium6.1Reflected Cross-Site Scripting via fs_request_get
≤1.9.2No patch available
Same weakness (Open Redirect)
All Open Redirect| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header | CVE-2026-120688 | |
| Critical9.8 | Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission | CVE-2026-125055 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter | CVE-2026-119077 | |
| Medium5.3 | Unauthenticated Sensitive Information Exposure in 'search' Parameter | CVE-2026-121518 |
- High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup
≤5.25.25Update to 5.26.45
- Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder
≤1.0.2Update to 1.1
- Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System
≤3.3.9Update to 3.4.0
- Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce
≤5.127.0Update to 5.128.0
Timeline
CVE published
Severity medium, CVSS 5.4
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.