What is CVE-2023-39007?

CVE-2023-39007 is a critical-severity vulnerability in Opnsense, classified under Cross-site Scripting. CVSS score: 9.6/10. Published 2023-08-09.

How severe is CVE-2023-39007?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Is CVE-2023-39007 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Opnsense

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.023 (81.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

Affected products

Opnsense
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

cve@mitre.org (Patch)
cve@mitre.org (Exploit, Third Party Advisory)
cve@mitre.org

Frequently asked questions

What is CVE-2023-39007?: CVE-2023-39007 is a critical-severity vulnerability in Opnsense, classified under Cross-site Scripting. CVSS score: 9.6/10. Published 2023-08-09.
How severe is CVE-2023-39007?: Critical severity. CVSS v3 base score is 9.6 out of 10.
Is CVE-2023-39007 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.