CVE-2020-11546 in the critical feed json
SuperWebMailer 7.21.0.01526 is susceptible to a remote code execution vulnerability in the Language parameter of mailingupgrade.php.
published 2020-07-14 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-3897
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 32.8%
- EPSS 32.8% chance of exploitation in 30 days, percentile 98%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
SuperWebMailer 7.21.0.01526 is susceptible to a remote code execution vulnerability in the Language parameter of mailingupgrade.php. An unauthenticated remote attacker can exploit this behavior to execute arbitrary PHP code via Code Injection.
Patch / fix
- superwebmailer superwebmailer 7.40.0.01550
Exploit prediction
32.84% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template SuperWebmailer 7.21.0.01526 - Remote Code Execution nuclei detection template
- blog.to.com https://blog.to.com/advisory-superwebmailer-cve-2020-11546/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-94 Improper Control of Generation of Code
References
-
blog.to.com
/advisory-superwebmailer-cve-2020-11546/
exploit, third-party-advisory
Sources
- CVE List CVE-2020-11546
- NVD CVE-2020-11546
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.