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Fencer Intel
critical 9.9

CVE-2021-43609 json

An issue was discovered in Spiceworks Help Desk Server before 1.3.3.

published 3y ago modified 4mo ago also EUVD-2021-30523

cvss
9.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.4%
EPSS 2.4% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

An issue was discovered in Spiceworks Help Desk Server before 1.3.3. A Blind Boolean SQL injection vulnerability within the order_by_for_ticket function in app/models/reporting/database_query.rb allows an authenticated attacker to execute arbitrary SQL commands via the sort parameter. This can be leveraged to leak local files from the host system, leading to remote code execution (RCE) through deserialization of malicious data.

Patch / fix

  • spiceworks help_desk_server 1.3.3

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
2y ago

Exploit prediction

2.44% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • linkedin.com https://www.linkedin.com/pulse/cve-2021-43609-write-up-division5-security-4lgwe referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 9.9 CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:L/S:C/UI:N
CNA 3.1 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

Weakness
  • CWE-89 Improper Neutralization of Special Elements used in an SQL Command

References

Sources

Fencer Intel 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.