CVE-2018-16979 json
Monstra CMS V3.0.4 allows HTTP header injection in the plugins/captcha/crypt/cryptographp.php cfg parameter, a related issue to CVE-2012-29…
published 2018-09-12 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-8765
- cvss
- 6.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.0%
- EPSS 3.0% chance of exploitation in 30 days, percentile 87%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
Monstra CMS V3.0.4 allows HTTP header injection in the plugins/captcha/crypt/cryptographp.php cfg parameter, a related issue to CVE-2012-2943.
Exploit prediction
3.02% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template Monstra CMS 3.0.4 - HTTP Header Injection nuclei detection template
- github.com https://github.com/howchen/howchen/issues/4 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.1 | CVSS:3.0/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 |
Classification
- Weakness
-
- CWE-113 Improper Neutralization of CRLF Sequences in HTTP Headers
References
-
github.com
/howchen/howchen/issues/4
exploit, third-party-advisory
Sources
- CVE List CVE-2018-16979
- NVD CVE-2018-16979
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.