Alta Video — 1743: Insufficient checks in DOMPurify enabled execution of arbitrary JavaScript code

Release Date

10th February 2025.

Overview

A vulnerability has been identified in the `DOMPurify` Javascript library, where insufficient sanitization checks enabled the execution of arbitrary JavaScript code.

Affected Products

• Alta Video:
• All Stable upgrade channel versions before 7.3.2.
• All Beta upgrade channel versions before 7.3.1.

Unaffected Products

• Alta Video:
• All Stable upgrade channel versions after and including 7.3.2.
• All Beta upgrade channel versions after and including 7.3.1.
• Avigilon Cloud-Native Cameras: all versions.
• Alta Video Cloud: all versions.

Resolution

This issue has been fixed in Alta Video Beta upgrade channel version 7.3.1 and Stable upgrade channel version 7.3.2.

It is *strongly recommended* that all installations running an affected version are upgraded to the latest release as soon as possible. Releases are available to download through the Alta Video User Interface.

Vulnerability Information

• CVE: not issued.
• CVSSv3 score: 6.1 (Medium)
• CVSSv3 vector: [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N](https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

Mitigations

There are no known mitigations for this issue.

Work arounds

There are no known work arounds for this issue.

Acknowledgements

Issue reported by Vsevolod Kokorin (Slonser), security researcher at Solidlab.

Disclosure Timeline

• 09/12/2024 Issue found
• 10/12/2024 Root cause established
• 10/12/2024 Fix identified
• 12/12/2024 Patched Alta Video (Beta upgrade channel) released
• 17/12/2024 Patched Alta Video (Stable upgrade channel) released
• 10/02/2025 Vulnerability publicly disclosed