TI-2023-20236 Aliases CVE-2023-38997 GHSA-h44v-883g-x8c3

A directory traversal vulnerability in the Captive Portal templates of OPNsense Community…

LOW 34CWE-22Published 2023-08-09 · Updated 2024-08-02

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

A directory traversal vulnerability in the Captive Portal templates of OPNsense Community Edition before 23.7 and Business Edition before 23.4.2 allows attackers to execute arbitrary system commands as root via a crafted ZIP archive.

Why it matters now

EPSS 0.01374 72nd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:opnsense:opnsense::::::::	before 23.7	Vulnerable	opnsense

cpe:2.3:a:opnsense:opnsense:*:*:*:*:*:*:*:* Versions before 23.7 Vulnerable ·opnsense

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-38997
2026-10-03 Alias added: GHSA-h44v-883g-x8c3

References

Exploit 1

https://logicaltrust.net/blog/2023/08/opnsense.html

Patch 1

https://github.com/opnsense/core/commit/448762d440b51574f1906c0ec2f5ea6dc4f16eb2

TI-2023-20247 A command injection vulnerability in the component /api/cron/settings/setJob/ of OPNsense… CVSS 3.1CRITICAL 9.8
TI-2023-20243 Insecure permissions in the configuration directory (/conf/) of OPNsense Community… CVSS 3.1CRITICAL 9.8
TI-2023-20240 A command injection vulnerability in the component diag_backup.php of OPNsense Community… CVSS 3.1CRITICAL 9.8
TI-2023-11947 DECISO OPNsense 23.1 does not impose rate limits for authentication, allowing attackers… CVSS 3.1CRITICAL 9.8
TI-2023-20246 /ui/cron/item/open in the Cron component of OPNsense Community Edition before 23.7 and… CVSS 3.1CRITICAL 9.6
TI-2026-26826 OPNsense has an LDAP Injection via Unsanitized Username in Authentication CVSS 3.1HIGH 8.2

See all 35 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences