CVE-2020-26124 in the critical feed json
openmediavault before 4.1.36 and 5.x before 5.5.12 allows authenticated PHP code injection attacks, via the sortfield POST parameter of rpc…
published 2020-10-02 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-18754
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 65.4%
- EPSS 65.4% chance of exploitation in 30 days, percentile 99.2%
- public exploits
- 1
- Metasploit
Summary
openmediavault before 4.1.36 and 5.x before 5.5.12 allows authenticated PHP code injection attacks, via the sortfield POST parameter of rpc.php, because json_encode_safe is not used in config/databasebackend.inc. Successful exploitation allows arbitrary command execution on the underlying operating system as root.
Patch / fix
- openmediavault openmediavault 4.1.36, 5.5.12
Timeline
- First public exploit (Metasploit exploit/unix/webapp/openmediavault_rpc_rce)
- Published
Exploit prediction
65.39% chance of exploitation in the next 30 days, higher than 99.2% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit exploit/unix/webapp/openmediavault_rpc_rce OpenMediaVault rpc.php Authenticated PHP Code Injection metasploit exploit, excellent rank, 2020-09-28
- packetstormsecurity.com http://packetstormsecurity.com/files/160223/OpenMediaVault-rpc.php-Authenticated-PHP-Code-Injection.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-94 Improper Control of Generation of Code
References
-
github.com
/openmediavault/openmediavault/commit/ebb51bbf5a39f4955eab0073bf87f2a31926d85d
patch, third-party-advisory
-
packetstormsecurity.com
/files/160223/OpenMediaVault-rpc.php-Authenticated-PHP-Code-Injection.html
exploit, third-party-advisory, vdb-entry
-
openmediavault.org
/?p=2797
vendor-advisory
Sources
- CVE List CVE-2020-26124
- NVD CVE-2020-26124
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.