CVE-2020-26124
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 64.8%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 64.83% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-94
- Affected
- openmediavault/openmediavault
- Source
- cve@mitre.org
EPSS moved from 64.8% on 20 October 2026 to 64.8% on 26 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://packetstormsecurity.com/files/160223/OpenMediaVault-rpc.php-Authenticated-PHP-Code-Injection.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/openmediavault/openmediavault/commit/ebb51bbf5a39f4955eab0073bf87f2a31926d85dPatch, Third Party Advisory
- https://www.openmediavault.org/?p=2797Vendor Advisory
- http://packetstormsecurity.com/files/160223/OpenMediaVault-rpc.php-Authenticated-PHP-Code-Injection.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/openmediavault/openmediavault/commit/ebb51bbf5a39f4955eab0073bf87f2a31926d85dPatch, Third Party Advisory
- https://www.openmediavault.org/?p=2797Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.