AcyMailing < 7.5.0 - Unauthenticated Open Redirect
Priority LOW 31CWE-601Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-601.
Summary
When subscribing using AcyMailing, the 'redirect' parameter isn't properly sanitized. Turning the request from POST to GET, an attacker can craft a link containing a potentially malicious landing page and send it to the victim.
Why it matters now
EPSS 0.01939 80th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Newsletter via SMTP, Sendinblue, Sendgrid, Mailgun - AcyMailing SMTP Newsletter (AcyMailing): 7.5.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| acymailing.com | Newsletter via SMTP, Sendinblue, Sendgrid, Mailgun - AcyMailing SMTP Newsletter | 7.5.0 to before 7.5.0 | 7.5.0 | Patch available | CNA |
- Newsletter via SMTP, Sendinblue, Sendgrid, Mailgun - AcyMailing SMTP Newsletter Vendoracymailing.com Affected 7.5.0 to before 7.5.0 Fixed in 7.5.0 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:acymailing:acymailing:*:*:*:*:*:wordpress:*:* | before 7.5.0 | Vulnerable | acymailing.com |
- cpe:2.3:a:acymailing:acymailing:*:*:*:*:*:wordpress:*:* Versions before 7.5.0 Vulnerable ·acymailing.com
Remediation
- Fix · CNA Newsletter via SMTP, Sendinblue, Sendgrid, Mailgun - AcyMailing SMTP Newsletter (AcyMailing) Fixed in 7.5.0
Timeline
- 2026-10-02 Threatist record created from CVE-2021-24288
- 2026-10-03 Alias added: GHSA-vrm9-x4ww-qpgw
References
More acymailing.com Acymailing vulnerabilities
- TI-2023-13245 Unauthenticated RCE affecting the AcyMailing plugin for Joomla CVSS 3.1CRITICAL 9.8
- TI-2026-40657 SQL injection in acymailing.com AcyMailing extension for Joomla CVSS 4.0CRITICAL 9.2
- TI-2026-63343 Unrestricted file upload in acymailing.com AcyMailing Enterprise extension for Joomla CVSS 4.0CRITICAL 9.5
- TI-2024-06844 AcyMailing <= 9.7.2 - Authenticated (Subscriber+) Arbitrary File Upload via acym_extractArchive Function CVSS 3.1HIGH 8.8
- TI-2023-13246 Missing access control affecting the AcyMailing plugin for Joomla CVSS 3.1HIGH 7.5
- TI-2023-13247 Stored XSS affecting the AcyMailing plugin for Joomla CVSS 3.1HIGH 7.2
Sources
- CVE-2021-24288 · CVE Program
- CVE-2021-24288 · NVD
- FIRST EPSS
- GHSA-vrm9-x4ww-qpgw · GitHub Advisory Database · CC BY 4.0
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