CVE-2022-39840 json
Cotonti Siena 0.9.20 allows admins to conduct stored XSS attacks via a direct message (DM).
published 2022-09-05 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-42285
- cvss
- 4.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 42%
- public exploits
- 0
- none known
Summary
Cotonti Siena 0.9.20 allows admins to conduct stored XSS attacks via a direct message (DM).
Exploit prediction
0.50% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/Cotonti/Cotonti/issues/1660 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/Cotonti/Cotonti/issues/1660
exploit, issue-tracking, third-party-advisory
Sources
- CVE List CVE-2022-39840
- NVD CVE-2022-39840
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.