Is CVE-2026-45620 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-45620 being exploited in the wild.

How severe is CVE-2026-45620?

Medium severity, with a CVSS score of 5.3, published 29 May 2026.

Which products and versions are affected?

wwbn/avideo (Packagist) <= 29.0, ECOSYSTEM:introduced=0,last_affected=29.0; WWBN AVideo <= 29.0.

Is there a fix for CVE-2026-45620?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-45620 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-45620?

Check whether you run wwbn/avideo (Packagist) or WWBN AVideo at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-45620: WWBN AVideo unauthenticated user enumeration in mention.json.php

Q: Is there a fix for CVE-2026-45620?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

Q: How is CVE-2026-45620 attacked?

It is attacked over the network, in a web application.

Q: Am I affected by CVE-2026-45620?

Check whether you run wwbn/avideo (Packagist) or WWBN AVideo at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-45620 · Severity: medium · CVSS 5.3 · Published 2026-05-29

WWBN AVideo, an open-source video sharing platform, contains a security flaw that allows anyone on the internet to see a list of registered users. By accessing a specific internal file, an unauthorized person can gather usernames and account details without needing to log in. This information could be used to facilitate more targeted attacks, such as phishing or password guessing, against the platform's users.

Technologies: wwbn/avideo (Packagist), WWBN AVideo. Vendors: Packagist, WWBN.

Quick answers

Is CVE-2026-45620 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-45620 being exploited in the wild.
How severe is CVE-2026-45620?: Medium severity, with a CVSS score of 5.3, published 29 May 2026.
Which products and versions are affected?: wwbn/avideo (Packagist) <= 29.0, ECOSYSTEM:introduced=0,last_affected=29.0; WWBN AVideo <= 29.0.
Is there a fix for CVE-2026-45620?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-45620 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-45620?: Check whether you run wwbn/avideo (Packagist) or WWBN AVideo at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An improper authorization vulnerability exists in WWBN AVideo versions 29.0 and earlier within the 'objects/mention.json.php' component. The script fails to implement 'User::loginCheck()' or any administrative access controls, relying solely on a regex check for a leading '@' character in the 'term' request parameter. This allows a remote, unauthenticated attacker to query the 'User::getAllUsers' method and retrieve sensitive user information including names, emails, and channel names. This issue is a sibling to CVE-2026-43881 and represents an incomplete fix in the codebase.

Affected products

WWBN AVideo <= 29.0

Identifiers

CVE-2026-45620
GHSA-vpfx-pxqw-2w79

Timeline

2026-05-11: advisory: GitHub Security Advisory published
2026-05-29: disclosed: CVE published to NVD

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-vpfx-pxqw-2w79

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