CVE-2020-12737 json
An issue was discovered in Maxum Rumpus before 8.2.12 on macOS.
published 2020-05-08 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-5025
- cvss
- 6.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 66%
- public exploits
- 0
- none known
Summary
An issue was discovered in Maxum Rumpus before 8.2.12 on macOS. Authenticated users can perform a path traversal using double escaped characters, enabling read access to arbitrary files on the server.
Patch / fix
- maxum rumpus 8.2.12
Exploit prediction
1.14% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- gist.github.com https://gist.github.com/escaped-com/83d89a05067c62e95992d42bbfa58933 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
gist.github.com
/escaped-com/83d89a05067c62e95992d42bbfa58933
exploit, third-party-advisory
-
maxum.com
/Rumpus/Overview.html
product
Sources
- CVE List CVE-2020-12737
- NVD CVE-2020-12737
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.