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CVE Record

CVE-2026-86190: WWBN AVideo Broken Access Control via videoViewsInfo hash Parameter

WWBN AVideo contains a broken access control vulnerability in videoViewsInfo endpoints that returns complete user records including password hashes, recovery tokens, and live session identifiers to unauthenticated callers when a hash parameter is provided. Attackers can use the disclosed session identifier to hijack viewer sessions, including administrator accounts, and obtain sensitive personal data for all video viewers.

CriticalCVSS 9.3Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

AVideo may expose highly sensitive user records to anyone who can reach vulnerable videoViewsInfo endpoints. Disclosed data can include password hashes, recovery tokens, and active session identifiers. Session identifiers could enable account takeover, including administrator sessions, without requiring credentials or user interaction.

Executive priority

Treat reachable AVideo deployments as an immediate investigation priority. Within the same response window, establish version exposure, restrict vulnerable endpoints, and evaluate potential credential or session compromise. Do not assume systems are safe from the ambiguous version metadata alone.

Technical view

This is a network-accessible broken access control flaw involving the videoViewsInfo hash parameter. According to the supplied record, unauthenticated requests can return complete user records. CVSS 4.0 rates it 9.3 because confidentiality and integrity impacts are high, while availability impact is not identified.

Likely exposure

Internet-accessible AVideo deployments using affected videoViewsInfo functionality face the greatest risk. The supplied metadata does not clearly establish affected release ranges: it lists version "0" and otherwise marks versions unaffected. Administrators should obtain authoritative version guidance before concluding exposure.

Exploitation context

No active exploitation is established by the supplied sources, and the CVE is not identified as KEV. Exploitation is nevertheless described as remotely reachable, low complexity, unauthenticated, and requiring no user interaction. Public accessibility and active administrator sessions would increase practical risk.

Researcher notes

The central security boundary failure is unauthenticated disclosure of complete user objects, with live session identifiers creating an integrity impact beyond ordinary information leakage. The supplied sources support CWE-200 and CVSS 9.3. Precise affected versions, patch details, and observed exploitation are not established in the bundle.

Mitigation direction

  • Review the vendor advisory immediately for confirmed affected versions and remediation guidance.
  • Restrict public access to vulnerable videoViewsInfo endpoints until remediation is confirmed.
  • Invalidate active sessions and recovery tokens if exposure is suspected.
  • Reset affected credentials using an incident-response process if user records may have leaked.
  • Monitor vendor guidance for a fixed release; no specific patch version appears in the supplied bundle.

Validation and detection

  • Inventory all AVideo deployments, versions, and internet-facing instances.
  • Confirm whether videoViewsInfo endpoints are reachable without authentication using an authorized, controlled test.
  • Review access logs for unexpected requests involving videoViewsInfo and hash parameters.
  • Verify unauthenticated responses never contain user records, hashes, recovery tokens, or session identifiers.
  • Confirm session and recovery-token invalidation after remediation or suspected exposure.
Prepared
Confidence
medium
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-200: Information exposure and cloud metadata lookup

Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-86190 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.3 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

2CVSS vectors
3Timeline events
1ADP providers
3Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: yesTechnical Impact: total

CVSS vector scores

2 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
9.3CVSS 4.0CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N——VulnCheck
9.1CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N3.95.2VulnCheck

Vulnerability scoring details

Base CVSS 4.0 score

9.3Critical
CVSS 4.0 vector shape for CVE-2026-86190Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
WWBNAVideo0unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-200 · source CWE mapping

Exposure of Sensitive Information to an Unauthorized Actor

Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.