CVE-2020-11734 json
cgi-bin/go in CyberSolutions CyberMail 5 or later allows XSS via the ACTION parameter.
published 2020-04-13 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-4076
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 61%
- public exploits
- 0
- none known
Summary
cgi-bin/go in CyberSolutions CyberMail 5 or later allows XSS via the ACTION parameter.
Exploit prediction
0.96% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- gist.github.com https://gist.github.com/tonykuo76/d2480727faeb768a97800db3058dceed referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/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
-
gist.github.com
/tonykuo76/d2480727faeb768a97800db3058dceed
exploit, third-party-advisory
-
cybersolutions.co.jp
/product/cybermail/
vendor-advisory
-
chtsecurity.com
/news/6b907733-c475-4504-b3b7-793442d34335
third-party-advisory
Sources
- CVE List CVE-2020-11734
- NVD CVE-2020-11734
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.