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WWBN AVideo through 29.7.1 Privilege Escalation via Encoder video_id_hash

CVE-2026-126805

8.6HighCNA
Exploited
No known exploitation
Fix
Fix or patch referenced
Who is exposed
Specific setups only

Do first: Check whether your setup matches what the bug needs. The attacker holds a non-administrator account with the delegated Videos Admin permission The Permissions plugin is enabled, which is the default

Published
Last modified
Reference
Last checked
17/100 · provisional
Specific setups only
None on Exploit-DB, Metasploit or GitHub

Summary

The WWBN AVideo product, through version 29.7.1 (version omitted per rules), has an incorrect authorization flaw that lets a delegated Videos Admin user obtain video_id_hash values tied to other owners' videos, including administrator-owned ones. An attacker who already holds that delegated admin access over the network can replay such a hash to log in without a password and gain plugin upload, configuration, and user management rights.

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

Read the original description

WWBN AVideo through 29.7.1 contains an incorrect authorization vulnerability that allows delegated Videos Admin users to obtain video_id_hash values bound to any video owner via encoder endpoints like aVideoEncoderStatus.json.php. Attackers can request the hash for an administrator-owned video and replay it through useVideoHashOrLogin() for password-less login, gaining plugin upload, configuration, and user management access.

Who should check

Teams running WWBN AVideo through 29.7.1 with the Permissions plugin and Videos Admin group permissions

Read the source excerpt

“All released versions with the Permissions plugin are therefore believed affected.”

github.com

cve.now Index

17Pcve.now Index 17 of 100 · methodology v3 · provisional
  • Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
  • Exposure8/25Specific setups only, reachable over the network
  • Reach?/20Unknown. No tracked technology or package matched
  • Severity8.6/10CVSS 8.6
  • No patch0/5No signal

What would change the score

  • Would score about 67 if added to CISA KEV
  • Would score about 62 if CISA's SSVC rates exploitation active
  • Would score about 24 if CISA's SSVC rates it automatable

What to do

  • Check whether your setup matches what the bug needs.

    The attacker holds a non-administrator account with the delegated Videos Admin permission The Permissions plugin is enabled, which is the default
  • Apply the patch listed under Evidence.

Check your systems with an agent

Paste this into a coding or ops agent. It checks your systems read-only and reports a table per asset.

Check whether my systems are affected by CVE-2026-126805 (WWBN AVideo through 29.7.1 Privilege Escalation via Encoder video_id_hash), using the cve.now data below.

Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only.

What cve.now has for CVE-2026-126805 (entry last updated 2026-11-11):
Affected:
- WWBN AVideo: through 29.7.1
Fixed versions: none listed yet.
Conditions (all must be true for the bug to be hit):
- The attacker holds a non-administrator account with the delegated Videos Admin permission (source: https://github.com/WWBN/AVideo/security/advisories/GHSA-8wjr-gw73-9f2g)
- The Permissions plugin is enabled, which is the default (source: https://github.com/WWBN/AVideo/security/advisories/GHSA-8wjr-gw73-9f2g)
Setup: the bug is reachable in a default setup; no special feature or setting is needed.
Attacker needs: network access, high-privilege login, no user action.
CISA KEV: CVE-2026-126805 is not listed as of cve.now's last read.
This KEV status is for CVE-2026-126805 only. If you also check another CVE, look up its own KEV status; never assume it from this one.

How to check:
- Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory.

Verify against the linked advisories before concluding, and cite the date you read each one:
- https://github.com/WWBN/AVideo/security/advisories/GHSA-8wjr-gw73-9f2g
- https://github.com/WWBN/AVideo/commit/8252cb87de0639ae4d8c84c03d46f657948dca07
- https://github.com/WWBN/AVideo/blob/v29.7.1/objects/EncoderJobStatus.php#L31-L42
- https://github.com/WWBN/AVideo/blob/v29.7.1/objects/functions.php#L7619-L7647
- https://www.vulncheck.com/advisories/wwbn-avideo-through-29.7.1-privilege-escalation-via-encoder-video-id-hash
Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing.

Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action.

Entry: https://cve.now/CVE-2026-126805
For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example execute with name cve.get and arguments {"id": "CVE-2026-126805"}.

Timeline

  1. CVE published
  2. First seen by cve.now

Affected versions

  • WWBN AVideo

    through 29.7.1

Evidence 7

Vendor advisory · 1

Establishes: Affected and fixed versions.

  1. Advisory

CVE record · 2

Establishes: The identifier and description.

  1. Record
  2. Record

Other links · 4

  1. Patch
  2. Repository
  3. Repository
  4. Link

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

Questions about CVE-2026-126805

Is CVE-2026-126805 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data

What does this mean?

A non-administrator account with the delegated Videos Admin permission can escalate its privileges to a full site administrator session. That session can also log in as other video owners.Source: github.com

Which versions are affected by CVE-2026-126805?

AVideo: through 29.7.1.Source: cve.now feed data

Am I affected, and how do I check?

Versions up to and including 29.7.1 of WWBN AVideo are in scope. The bug needs the Permissions plugin enabled, which is the default, and a non-administrator account holding the delegated Videos Admin permission. To check, compare the installed version against 29.7.1, confirm whether the Permissions plugin is enabled, and review which accounts hold Videos Admin.Source: github.com

How do I fix CVE-2026-126805?

The checked facts do not name a fixed release, so no upgrade target can be given from them. Check the vendor's advisory for a release newer than 29.7.1 and upgrade to it once it is confirmed.Source: github.com