CVE-2023-51630

Paessler PRTG Network Monitor Cross-Site Scripting Authentication Bypass Vulnerability

MEDIUM
6.1
CVSS Score
Published: February 8, 2024 at 10:13 PM UTC
Updated: June 17, 2026 at 06:41 AM UTC
1 product affected across 1 vendorPRTG Network Monitor

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Severity
MEDIUM6.1
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

Paessler PRTG Network Monitor Cross-Site Scripting Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Paessler PRTG Network Monitor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the web console. The issue results from the lack of proper validation of user-supplied data, which can lead to the injection of an arbitrary script. An attacker can leverage this vulnerability to bypass authentication on the system. . Was ZDI-CAN-21182.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 24.1.90.130623.2.84.1566
Affected range stops below 24.1.90.1306, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_research-advisoryThird Party AdvisoryVDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-24-073/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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