CVE-2023-28148 Paessler PRTG - Stored XSS

Paessler PRTG < 23.3.86.1520 contains a stored XSS caused by improper sanitization of bodyclass input, letting remote attackers execute scripts in users' browsers, exploit requires user interaction.

CVSS base score 7.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.21% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Stored XSS
Impact
Client Script Exec
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Published
14 September 2026
Updated
15 October 2026
Weakness
CWE-79

Vendor fix

Update to version 23.3.86.1520 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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