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Public proof of conceptFix available

CVE-2023-39007

A public proof of concept exists; no exploitation attested.

  • Published2023-08-09
  • Fixed in23.7
  • WeaknessCWE-79

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

/ui/cron/item/open in the Cron component of OPNsense Community Edition before 23.7 and Business Edition before 23.4.2 allows XSS via openAction in app/controllers/OPNsense/Cron/ItemController.php.

Timeline

dates in UTC
  1. 2023-08-0919:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-04 09:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-39007?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-39007?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Opnsense
BranchAffectedFixed in
23.7< 23.723.7

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Opnsense to 23.7

Advisories and patches

Detection

read 2026-11-03 22:42 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Published
2023-08-09
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-wm32-j2xh-9mq5

Frequently asked questions

What is CVE-2023-39007?

/ui/cron/item/open in the Cron component of OPNsense Community Edition before 23.7 and Business Edition before 23.4.2 allows XSS via openAction in app/controllers/OPNsense/Cron/ItemController.php.

Is CVE-2023-39007 actively exploited?

A proof-of-concept exploit exists for CVE-2023-39007, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2023-39007?

CVE-2023-39007 has a CVSS v3 base score of 9.6 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

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Sources for this record