CVE-2026-23738

LOW
2026-02-06 [email protected]
3.5
CVSS 3.1

CVSS Vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Feb 06, 2026 - 17:16 nvd
LOW 3.5

Tags

XSS

Description

Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2, user supplied/control values for Cookies and any GET variable query Parameter are directly interpolated into the HTML of the page using ast_str_append. The endpoint at GET /httpstatus is the potential vulnerable endpoint relating to asterisk/main /http.c. This issue has been patched in versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2.

Analysis

Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2, user supplied/control values for Cookies and any GET variable query Parameter are directly interpolated into the HTML of the page using ast_str_append. …

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Remediation

During next maintenance window: Apply vendor patches when convenient. Verify cross-site scripting controls are in place.

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Priority Score

18
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +18
POC: 0

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CVE-2026-23738 vulnerability details – vuln.today
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