CVE-2026-39367Public exploitNetwork attack vector

Stored XSS via unescaped EPG programme titles

Published Apr 7, 2026 · Updated Apr 7, 2026

Stored XSS in WWBN AVideo 26.0 and earlier allows remote authenticated users to execute JavaScript through malicious EPG XML. EpgParser.php retains raw programme titles, and plugin/PlayerSkins/epg.php interpolates them into HTML text and title attributes without escaping. Basic upload permission is sufficient to store an epg_link, while any unauthenticated EPG visitor triggers the cached payload, exposing session cookies and enabling account takeover.

CVSS severity5.4
Medium
EPSS probability0.19%
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 WWBN AVideo 26.0 and earlier allows remote authenticated users to execute JavaScript through malicious EPG XML. EpgParser.php retains raw programme titles, and plugin/PlayerSkins/epg.php interpolates them into HTML text and title attributes without escaping. Basic upload permission is sufficient to store an epg_link, while any unauthenticated EPG visitor triggers the cached payload, exposing session cookies and enabling account takeover.

The record

CVE
CVE-2026-39367
Published
Apr 7, 2026
Updated
Apr 7, 2026
Vendor
World Wide Broadcast Network
Product
AVideo
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 7, 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

5.4GitHub, Inc.CVSS: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.

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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')
T1059.007Command and Scripting Interpreter: JavaScript

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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