CVE-2021-24288 json
AcyMailing < 7.5.0 - Unauthenticated Open Redirect
published 2021-05-17 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11202
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.9%
- EPSS 1.9% chance of exploitation in 30 days, percentile 80%
- public exploits
- 0
- none known, plus a Nuclei check
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.
Patch / fix
- acymailing acymailing 7.5.0
Exploit prediction
1.94% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template WordPress AcyMailing <7.5.0 - Open Redirect nuclei detection template
- wpscan.com https://wpscan.com/vulnerability/56628862-1687-4862-9ed4-145d8dfbca97 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 5.8 | AV:N/AC:M/Au:N/C:P/I:P/A:N |
Affected products
- AcyMailing Newsletter via SMTP, Sendinblue, Sendgrid, Mailgun - AcyMailing SMTP Newsletter
Classification
- Weakness
-
- CWE-601 URL Redirection to Untrusted Site
- Technology feeds
References
-
wpscan.com
/vulnerability/56628862-1687-4862-9ed4-145d8dfbca97
exploit, third-party-advisory
Sources
- CVE List CVE-2021-24288
- NVD CVE-2021-24288
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.