CVE-2026-33295Public exploitNetwork attack vector

Stored XSS via unescaped video title

Published Mar 22, 2026 · Updated Mar 22, 2026

Stored XSS in the CDN download-buttons component of World Wide Broadcast Network AVideo before 26.0 lets remote authenticated users run JavaScript. The component inserts a video record's clean_title value verbatim into a single-quoted JavaScript string in plugin/CDN/downloadButtons.php. Video creation or editing privileges are required, and execution occurs when another user visits the affected download page, exposing that user's session and in-application authority.

CVSS severity8.2
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in the CDN download-buttons component of World Wide Broadcast Network AVideo before 26.0 lets remote authenticated users run JavaScript. The component inserts a video record's clean_title value verbatim into a single-quoted JavaScript string in plugin/CDN/downloadButtons.php. Video creation or editing privileges are required, and execution occurs when another user visits the affected download page, exposing that user's session and in-application authority.

The record

CVE
CVE-2026-33295
Published
Mar 22, 2026
Updated
Mar 22, 2026
Vendor
World Wide Broadcast Network
Product
AVideo
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 26.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

World Wide Broadcast Network · AVideoversion=< 26.0

Published CVSS scores

8.2GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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