CVE-2021-29643

MEDIUM
Published Sep 13, 20214y ago · Modified Jun 17, 20261w ago
5.4 CVSS 3.1
Medium
Find Similar
Published Sep 13, 2021 4y ago
Last Modified Jun 17, 2026 1w ago

Description

PRTG Network Monitor before 21.3.69.1333 allows stored XSS via an unsanitized string imported from a User Object in a connected Active Directory instance.

CVSS Details

Base Score
5.4
Exploitability
2.3
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 1

VendorProductVersionRange
paesslerprtg_network_monitor* <21.3.69.1333

References 2

  • raxis.com https://raxis.com/blog/prtg-network-monitor-cve-2021-29643
    ExploitThird Party Advisory
  • paessler.com https://www.paessler.com/prtg/history/stable#21.3.69.1333
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.