Authenticated internal-resource access via unvalidated EPG URL
Published Mar 31, 2026 · Updated Mar 31, 2026
Stored SSRF in AVideo 26.0 and earlier allows remote authenticated users with upload permissions to access internal resources via an EPG URL. The EpgParser fetches the stored epg_link with file_get_contents() after only FILTER_VALIDATE_URL validation, without calling isSSRFSafeURL(). Upload permission is required; each EPG page visit repeats the request, enabling internal-network scans, cloud-metadata reads, and interaction with internal services.
Summary
What happened
Stored SSRF in AVideo 26.0 and earlier allows remote authenticated users with upload permissions to access internal resources via an EPG URL. The EpgParser fetches the stored epg_link with file_get_contents() after only FILTER_VALIDATE_URL validation, without calling isSSRFSafeURL(). Upload permission is required; each EPG page visit repeats the request, enabling internal-network scans, cloud-metadata reads, and interaction with internal services.
The record
- CVE
- CVE-2026-34740
- Published
- Mar 31, 2026
- Updated
- Mar 31, 2026
- Vendor
- World Wide Broadcast Network
- Product
- AVideo
- Classifications
- CWE-918, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 31, 2026CVE publishedPublication date reported by the CVE source.
- Mar 31, 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.
- Affected versionversion=<= 26.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
- GitHub advisory EPG SSRF proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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