MEDIUMCVSS v3.1 5.2Vulnerability
CVE-2026-58394
OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.11, src/www/system_advanced_admin.php reads certificate records into $a_cert but omits that array from legacy_html_escape_form_data() before rendering each certificate descr value in the SSL Certificate selector. The certificate description accepts HTML metacharacters, allowing a user with the page-system-certmanager privilege to store markup that executes when another user opens System Settings Administration. This issue is fixed in version 26.1.11.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-10-20T21:14:08.448323+00:00
- Epss score
- 0.00239
- Cvss severity
- MEDIUM
- Cvss score
- 5.2
- Retrieved at
- 2026-10-21T01:24:49+00:00
- Last source
- FIRST EPSS
- Score
- 5.2
- Cvss version
- 3.1
- Cve id
- CVE-2026-58394
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N
- First seen by Signal
- 2026-10-18T13:39:03+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N
- Published at
- 2026-10-15T16:18:18.447
- Last modified
- 2026-10-15T21:08:49.703
- Epss percentile
- 0.14069
Related Entities (1)
HAS_WEAKNESS (1)
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