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Fencer Vulns
medium 4.4

CVE-2020-36772 json

CloudLinux CageFS 7.0.8-2 or below insufficiently restricts file paths supplied to the sendmail proxy command.

published 2024-01-22 2 y ago modified 2026-06-17 4 mo ago also EUVD-2020-24213

cvss
4.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 31%
public exploits
0
none known

Summary

CloudLinux CageFS 7.0.8-2 or below insufficiently restricts file paths supplied to the sendmail proxy command. This allows local users to read and write arbitrary files of certain file formats outside the CageFS environment.

Patch / fix

  • Cloudlinux OS cagefs 7.1.1-1

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • seclists.org http://seclists.org/fulldisclosure/2024/Jan/25 referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/176791/CloudLinux-CageFS-7.0.8-2-Insufficiently-Restricted-Proxy-Command.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
NVD 3.1 4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CNA 3.1 4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Affected products

  • Cloudlinux OS cagefs

Classification

Weakness
  • CWE-73 External Control of File Name or Path
  • CWE-610 Externally Controlled Reference to a Resource in Another Sphere

References

Sources

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.