CVE-2018-11227 json
Monstra CMS 3.0.4 and earlier has XSS via index.php.
published 2019-07-03 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-3267
- cvss
- 6.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.7%
- EPSS 4.7% chance of exploitation in 30 days, percentile 91%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
Monstra CMS 3.0.4 and earlier has XSS via index.php.
Patch / fix
- monstra monstra_cms 3.0.4
Exploit prediction
4.73% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template Monstra CMS <=3.0.4 - Cross-Site Scripting nuclei detection template
- exploit-db.com https://www.exploit-db.com/exploits/44646 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 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
exploit-db.com
/exploits/44646
exploit, third-party-advisory, vdb-entry
-
github.com
/monstra-cms/monstra/issues
third-party-advisory
-
github.com
/monstra-cms/monstra/issues/438
third-party-advisory
Sources
- CVE List CVE-2018-11227
- NVD CVE-2018-11227
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.