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Fencer Vulns
medium 4.4

CVE-2021-36721 json

Sysaid - Sysaid API User Enumeration

published 2021-12-14 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-23314

cvss
4.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

Sysaid API User Enumeration - Attacker sending requests to specific api path without any authorization before 21.3.60 version could get users names from the LDAP server.

Patch / fix

  • sysaid application_programming_interface 21.3.60

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

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

Affected products

  • SysAid SysAid API

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.