CVE-2018-20731 json
A stored cross site scripting (XSS) vulnerability in NeDi before 1.7Cp3 allows remote attackers to inject arbitrary web script or HTML via…
published 2019-01-17 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-13276
- 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 56%
- public exploits
- 0
- none known
Summary
A stored cross site scripting (XSS) vulnerability in NeDi before 1.7Cp3 allows remote attackers to inject arbitrary web script or HTML via User-Chat.php.
Exploit prediction
0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- sakerhetskontoret.com https://www.sakerhetskontoret.com/disclosures/nedi/report.html 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
-
sakerhetskontoret.com
/disclosures/nedi/report.html
exploit, third-party-advisory
-
nedi.ch
/end-of-year-update/
vendor-advisory
Sources
- CVE List CVE-2018-20731
- NVD CVE-2018-20731
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.