Vulnerability Details CVE-2026-33492
WWBN AVideo is an open source video platform. In versions up to and including 26.0, AVideo's `_session_start()` function accepts arbitrary session IDs via the `PHPSESSID` GET parameter and sets them as the active PHP session. A session regeneration bypass exists for specific blacklisted endpoints when the request originates from the same domain. Combined with the explicitly disabled session regeneration in `User::login()`, this allows a classic session fixation attack where an attacker can fix a victim's session ID before authentication and then hijack the authenticated session. Commit 5647a94d79bf69a972a86653fe02144079948785 contains a patch.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 20.9%
CVSS Severity
CVSS v3 Score 7.3
Products affected by CVE-2026-33492
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cpe:2.3:a:wwbn:avideo:10.1
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cpe:2.3:a:wwbn:avideo:10.2
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cpe:2.3:a:wwbn:avideo:10.4
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cpe:2.3:a:wwbn:avideo:10.8
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cpe:2.3:a:wwbn:avideo:11.1
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cpe:2.3:a:wwbn:avideo:11.1.1
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cpe:2.3:a:wwbn:avideo:11.5
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cpe:2.3:a:wwbn:avideo:11.6
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cpe:2.3:a:wwbn:avideo:12.4
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cpe:2.3:a:wwbn:avideo:14.2
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cpe:2.3:a:wwbn:avideo:14.3
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cpe:2.3:a:wwbn:avideo:14.3.1
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cpe:2.3:a:wwbn:avideo:14.4
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cpe:2.3:a:wwbn:avideo:2.2
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cpe:2.3:a:wwbn:avideo:2.4
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cpe:2.3:a:wwbn:avideo:2.7
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cpe:2.3:a:wwbn:avideo:3.4
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cpe:2.3:a:wwbn:avideo:3.4.1
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cpe:2.3:a:wwbn:avideo:4.0
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cpe:2.3:a:wwbn:avideo:4.0.1
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cpe:2.3:a:wwbn:avideo:4.0.2
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cpe:2.3:a:wwbn:avideo:5.0
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cpe:2.3:a:wwbn:avideo:6.5
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cpe:2.3:a:wwbn:avideo:7.2
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cpe:2.3:a:wwbn:avideo:7.3
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cpe:2.3:a:wwbn:avideo:7.4
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cpe:2.3:a:wwbn:avideo:7.5
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cpe:2.3:a:wwbn:avideo:7.6
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cpe:2.3:a:wwbn:avideo:7.7
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cpe:2.3:a:wwbn:avideo:7.8
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cpe:2.3:a:wwbn:avideo:8.1
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cpe:2.3:a:wwbn:avideo:8.5
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cpe:2.3:a:wwbn:avideo:8.6
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cpe:2.3:a:wwbn:avideo:8.7
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cpe:2.3:a:wwbn:avideo:8.9
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cpe:2.3:a:wwbn:avideo:8.9.1