CVE-2018-18271 json
XSS exists in CMS Made Simple version 2.2.7 via the m1_extra parameter in an admin/moduleinterface.php "Content-->News-->Add Article" actio…
published 2018-10-12 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-10006
- cvss
- 6.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 57%
- public exploits
- 0
- none known
Summary
XSS exists in CMS Made Simple version 2.2.7 via the m1_extra parameter in an admin/moduleinterface.php "Content-->News-->Add Article" action.
Exploit prediction
0.83% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/cmsmadesimple/cmsmadesimple-2-0/issues/13 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
-
github.com
/cmsmadesimple/cmsmadesimple-2-0/issues/13
exploit, third-party-advisory
Sources
- CVE List CVE-2018-18271
- NVD CVE-2018-18271
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.