CVE-2023-39002 json
A cross-site scripting (XSS) vulnerability in the act parameter of system_certmanager.php in OPNsense Community Edition before 23.7 and Bus…
published 2023-08-09 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-42759
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 68%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
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.
Patch / fix
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
1.20% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template OPNsense - Cross-Site Scripting nuclei detection template
- logicaltrust.net https://logicaltrust.net/blog/2023/08/opnsense.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/opnsense/core/commit/a4f6a8f8d604271f81984cfcbba0471af58e34dc
patch
-
logicaltrust.net
/blog/2023/08/opnsense.html
exploit, third-party-advisory
Sources
- CVE List CVE-2023-39002
- NVD CVE-2023-39002
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