CVE-2018-19654 json
An issue was discovered in Sales & Company Management System (SCMS) through 2018-06-06.
published 2018-11-29 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-11338
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 60%
- public exploits
- 0
- none known
Summary
An issue was discovered in Sales & Company Management System (SCMS) through 2018-06-06. There is a discrepancy in username checking between a component that does string validation, and a component that is supposed to query a MySQL database. Thus, it is possible to register a new account with a duplicate username, as demonstrated by use of the test%c2 string when a test account already exists.
Exploit prediction
0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/Venan24/SCMS/issues/1 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
github.com
/Venan24/SCMS/issues/1
exploit, third-party-advisory
Sources
- CVE List CVE-2018-19654
- NVD CVE-2018-19654
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.