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Fencer Vulns
medium 5.3

CVE-2020-13227 json

An issue was discovered in Sysax Multi Server 6.90.

published 2020-06-02 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-5496

cvss
5.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

An issue was discovered in Sysax Multi Server 6.90. An attacker can determine the username (under which the web server is running) by triggering an invalid path permission error. This bypasses the fakepath protection mechanism.

Exploit prediction

1.92% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • pasteboard.co https://pasteboard.co/J9eF12G.png referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/wrongsid3/Sysax-MultiServer-6.90-Multiple-Vulnerabilities/blob/master/README.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

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.