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CVE PROGRAM SOURCE RECORD2.3 Low

CVE-2026-57196

Asterisk: Reflected XSS in Phone Provisioning HTTP Error Pages

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Status
Published
Published
Updated
Assigning organization
GitHub_M

Description

Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, an unauthenticated attacker may use reflected cross-site scripting in `phone provisioning HTTP error pages` to retrieve an authorized user's `AMI session cookie` and impersonate that user when `res_phoneprov` is enabled. The Asterisk HTTP web server, Asterisk Manager Interface (AMI), and AMI access via HTTP must all be enabled; each is disabled by default. The attacker must be able to connect to the HTTP server, which binds only to `127.0.0.1` by default even when enabled, and must convince the authorized user to click a malicious link. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

asterisk asterisk

  • < 20.20.1affected
  • >= 21.0.0-pre1, < 21.12.3affected
  • >= 22.0.0-pre1, < 22.10.1affected
  • >= 23.0.0-pre1, < 23.4.1affected

asterisk certified-asterisk

  • < 20.7-cert11affected
  • >= 22.8-cert1-pre1, < 22.8-cert3affected

References