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MEDIUM severity

CVE-2026-45620 — WWBN/AVideo

MEDIUM

CVE-2026-45620 is a medium-severity (CVSS 5.3) CWE-204 vulnerability in WWBN/AVideo. No vendor fix is recorded yet; mitigation options are listed below.

AVideo CVE-2026-43881 incomplete fix - `objects/mention.json.php:17` is an unauthenticated user enumeration

Also known asGHSA-vpfx-pxqw-2w79
Published
May 29, 2026
Updated
Aug 12, 2026
Affected
1 pkg
Patched
See advisory
Exploits
None indexed
Exploitation data as of Sep 26, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-45620.

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs23th percentile — riskier than 23% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2026-45620 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 380,526 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected
🐘WWBN/AVideo

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

CVE-2026-43881 fix d9cdc7024 patched users.json.php only. The same anti-pattern survives at master HEAD in:

objects/mention.json.php:17     $ignoreAdmin = true;
objects/mention.json.php:18     $users = User::getAllUsers($ignoreAdmin,
                                    ['name', 'email', 'user', 'channelName'], 'a');

No User::loginCheck(), no admin gate. Only entry guard: preg_match('/^@/', $_REQUEST['term']) and hard-coded rowCount=10.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
🐘PackagistWWBN/AVideoall versionsNo fix

Affected Products

1 product · 1 configurations
Application
avideowwbn
≤ 29.0
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for WWBN/AVideo, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    No patched version of WWBN/AVideo has shipped for CVE-2026-45620 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

  3. Mitigate without a patch

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

CVE-2026-43881 fix `d9cdc7024` patched `users.json.php` only. The same anti-pattern survives at master HEAD in: ``` objects/mention.json.php:17 $ignoreAdmin = true; objects/mention.json.php:18 $users = User::getAllUsers($ignoreAdmin, ['name', 'email', 'user', 'channelName'], 'a'); ``` No `User::loginCheck()`, no admin gate. Only entry guard: `preg_match('/^@/', $_REQUEST['term'])` and hard-coded `rowCount=10`.
O3 Security · Impact-Aware SCA

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CVE-2026-45620: WWBN/AVideo (Medium 5.3) | O3 Security