CVE-2018-9991 json
Frog CMS 0.9.5 has XSS via the /admin/?/user/add Name or Username parameter.
published 2018-04-11 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-21583
- 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 44%
- public exploits
- 0
- none known
Summary
Frog CMS 0.9.5 has XSS via the /admin/?/user/add Name or Username parameter.
Exploit prediction
0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- gist.github.com https://gist.github.com/prafagr/98e625d2da82c5b9a7d75e6c3e947a63 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
-
gist.github.com
/prafagr/98e625d2da82c5b9a7d75e6c3e947a63
exploit, third-party-advisory
Sources
- CVE List CVE-2018-9991
- NVD CVE-2018-9991
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.