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AVideo CVE-2026-85158

| EUVDEUVD-2026-70393 MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2026-09-03 VulnCheck GHSA-fvv9-h2vx-4hfq
PHP XSS Avideo Wwbn
5.3
CVSS 4.0 · Vendor: VulnCheck
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Severity by source

Vendor (VulnCheck) PRIMARY
5.3 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
6.1 MEDIUM

Network-delivered reflected XSS requires victim interaction (UI:R), changes execution scope to the victim's browser (S:C), and has no server-side availability impact.

3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
P
Scope
X

Lifecycle Timeline

1
Analysis Generated
Sep 03, 2026 - 12:04 vuln.today

DescriptionCVE.org

AVideo through commit c91b5975d contains a reflected cross-site scripting vulnerability in videoEmbeded.php that echoes the link parameter inside an HTML comment with zero escaping. Attackers can close the comment with --> and inject arbitrary JavaScript that executes when victims visit the crafted embed URL.

AnalysisAI

Reflected XSS in AVideo's videoEmbeded.php allows unauthenticated remote attackers to execute arbitrary JavaScript in victims' browsers by delivering a crafted embed URL. The link GET parameter is echoed verbatim inside an HTML comment with no escaping, so injecting the sequence --> closes the comment context and enables arbitrary script injection. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation No authentication is required of the attacker (PR:N). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:P) and score of 5.3 accurately characterise this as a network-reachable, low-complexity reflected XSS requiring passive user interaction - consistent with a phishing delivery model. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Consult the upstream GitHub Security Advisory GHSA-9455-f6vm-29xc at https://github.com/WWBN/AVideo/security/advisories/GHSA-9455-f6vm-29xc for the official patch and any tagged release version. … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-85158 vulnerability details – vuln.today
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