CVE-2023-39002

MEDIUM NUCLEI

OPNsense < 23.7 - Cross-Site Scripting via system_certmanager.php act Parameter

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2023-39002 has a Nuclei detection template available — see the Nuclei card below for the Shodan/FOFA recon queries.

Description

A cross-site scripting (XSS) vulnerability in the act parameter of system_certmanager.php in OPNsense Community Edition before 23.7 and Business Edition before 23.4.2 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.

Nuclei Templates (1)

OPNsense - Cross-Site Scripting
MEDIUMby Herry
Shodan: title:"OPNsense" || http.title:"opnsense"
FOFA: title="opnsense"

References (2)

Core 2

Scores

CVSS v3 6.1
EPSS 0.0116
EPSS Percentile 63.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (1)
opnsense/opnsense < 23.7
Published Aug 09, 2023
Tracked Since Feb 18, 2026