CVE-2018-18738 json
An XSS issue was discovered in SEMCMS 3.4 via the admin/SEMCMS_Categories.php?pid=1&lgid=1 category_key parameter.
published 2018-10-28 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-10454
- cvss
- 4.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
Summary
An XSS issue was discovered in SEMCMS 3.4 via the admin/SEMCMS_Categories.php?pid=1&lgid=1 category_key parameter.
Exploit prediction
0.53% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/AvaterXXX/SEMCMS/blob/master/XSS.md#xss2 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 4.8 | CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/AvaterXXX/SEMCMS/blob/master/XSS.md#xss2
exploit, third-party-advisory
Sources
- CVE List CVE-2018-18738
- NVD CVE-2018-18738
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.