CVE-2026-58394

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Source
https://cve.org/CVERecord?id=CVE-2026-58394
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-58394.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-58394
Aliases
  • GHSA-8pgr-x852-qx4j
Published
2026-10-15T15:20:15Z
Modified
2026-10-16T10:30:55Z
Severity
  • 5.2 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N CVSS Calculator
Summary
OPNsense: Stored XSS in Administration Settings via Certificate Description
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-79"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58394.json"
}
References

Affected packages

Git / github.com/opnsense/core

Affected ranges

Type
GIT
Repo
https://github.com/opnsense/core
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
c930ab586ffe2d2e010e5135657e5e054316ff58
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "26.1.11"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

15.*
15.1
15.1.1
15.1.10
15.1.10.2
15.1.11
15.1.11.1
15.1.11.2
15.1.11.3
15.1.11.4
15.1.12
15.1.2
15.1.3
15.1.4
15.1.5
15.1.6
15.1.6.1
15.1.7
15.1.7.1
15.1.7.2
15.1.8
15.1.8.1
15.1.8.2
15.1.8.3
15.1.8.4
15.1.9
15.1.9.1
15.1.9.2
15.7
16.*
16.7.a
16.7.b
16.7.r
17.*
17.1.a
17.1.b
17.1.r
17.7.a
17.7.b
17.7.r
18.*
18.1.a
18.1.b
18.1.r
18.7.a
18.7.b
18.7.r
19.*
19.1.a
19.1.b
19.1.r
19.7.a
19.7.b
19.7.r
20.*
20.1.a
20.1.b
20.1.r
20.7.a
20.7.b
20.7.r
21.*
21.1.a
21.1.b
21.1.r
21.7.a
21.7.b
21.7.r
22.*
22.1.a
22.1.b
22.1.r
22.7.a
22.7.b
22.7.r
23.*
23.1.a
23.1.b
23.1.r
23.7.a
23.7.b
23.7.r
24.*
24.1.a
24.1.b
24.1.r
24.7.a
24.7.b
24.7.r
25.*
25.1.a
25.1.b
25.1.r
25.7.a
25.7.b
25.7.r
26.*
26.1
26.1.1
26.1.10
26.1.2
26.1.3
26.1.4
26.1.5
26.1.6
26.1.7
26.1.8
26.1.9
26.1.a
26.1.b
26.1.r
26.1.r1
26.1.r2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-58394.json"