CVE-2026-45580Public exploitNetwork attack vector

Stored XSS via unescaped stream key attribute

Published May 29, 2026 · Updated May 29, 2026

Stored XSS in the Live plugin in WWBN AVideo 29.0 and earlier allows remote authenticated users to execute JavaScript via a stream key. modeYoutubeLive.php raw-echoes live_transmitions.key into a quoted class attribute, while saveLive.php stores the request key without an allowlist or HTML escaping. A canStream account can plant the payload, and JavaScript runs in the AVideo origin when any authenticated or anonymous visitor opens the attacker's live page.

CVSS severity5.4
Medium
EPSS probability0.14%
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 Live plugin in WWBN AVideo 29.0 and earlier allows remote authenticated users to execute JavaScript via a stream key. modeYoutubeLive.php raw-echoes live_transmitions.key into a quoted class attribute, while saveLive.php stores the request key without an allowlist or HTML escaping. A canStream account can plant the payload, and JavaScript runs in the AVideo origin when any authenticated or anonymous visitor opens the attacker's live page.

The record

CVE
CVE-2026-45580
Published
May 29, 2026
Updated
May 29, 2026
Vendor
World Wide Broadcast Network
Product
AVideo
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 29, 2026CVE publishedPublication date reported by the CVE source.
  2. May 29, 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=<= 29.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

World Wide Broadcast Network · AVideoversion=<= 29.0

Published CVSS scores

5.4GitHubCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
T1189Drive-by Compromise

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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