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.
CVE-2026-33492
HIGHPre-NVD 7.37.3—
EchelonGraph scoreMEDIUM confidence
Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-03-20. a secondary CVSS source baseline 7.3; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: ghsa, secondary
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 7.3Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.3
- EG Score
- 7.3(medium)
- EG Risk
- 37(Track)EG Risk 37/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity73% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- Not listed
Published
March 23, 2026
Last Modified
June 17, 2026
References (3)
- security-advisories@githubhttps://github.com/WWBN/AVideo/commit/5647a94d79bf69a972a86653fe02144079948785
- security-advisories@githubhttps://github.com/WWBN/AVideo/security/advisories/GHSA-x3pr-vrhq-vq43
- 134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/WWBN/AVideo/security/advisories/GHSA-x3pr-vrhq-vq43
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| composer | wwbn/avideo | — | ghsa |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 2× in last 7d / 2× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-27 14:15 UTCEG score recompute
- 2026-07-27 14:15 UTCGHSA enrichment
Frequently asked(4)
What is CVE-2026-33492?
CVE-2026-33492 is a high vulnerability published on March 23, 2026. WWBN AVideo is an open source video platform. In versions up to and including 26.0, AVideo's sessionstart() 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…
When was CVE-2026-33492 disclosed?
CVE-2026-33492 was first published in the National Vulnerability Database on March 23, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-33492?
CVE-2026-33492 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-33492?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-33492, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-33492
Is Your Infrastructure Affected by CVE-2026-33492?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.