CVE-2020-28187 in the critical feed json
Multiple directory traversal vulnerabilities in TerraMaster TOS <= 4.2.06 allow remote authenticated attackers to read, edit or delete any…
published 2020-12-24 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-20672
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 16.4%
- EPSS 16.4% chance of exploitation in 30 days, percentile 96%
- public exploits
- 0
- none known
Summary
Multiple directory traversal vulnerabilities in TerraMaster TOS <= 4.2.06 allow remote authenticated attackers to read, edit or delete any file within the filesystem via the (1) filename parameter to /tos/index.php?editor/fileGet, Event parameter to /include/ajax/logtable.php, or opt parameter to /include/core/index.php.
Exploit prediction
16.35% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- ihteam.net https://www.ihteam.net/advisory/terramaster-tos-multiple-vulnerabilities/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
ihteam.net
/advisory/terramaster-tos-multiple-vulnerabilities/
exploit, third-party-advisory
-
terra-master.com
/
vendor-advisory
Sources
- CVE List CVE-2020-28187
- NVD CVE-2020-28187
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.