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CVE Record

CVE-2026-45580: WWBN AVideo Live: stored XSS via unescaped stream key in modeYoutubeLive.php class attribute

WWBN AVideo is an open source video platform. In 29.0 and earlier, there is a stored cross-site scripting vulnerability. The Live plugin's "YouTube-style" view renders the live transmission's stream key into an HTML class attribute by raw echo, without htmlspecialchars(). A canStream user can persist a key containing " plus an event handler via plugin/Live/saveLive.php, and any visitor (logged in or anonymous) opening the stream's live page executes attacker JavaScript in the platform origin.

MediumCVSS 5.4Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

WWBN AVideo 29.0 and earlier can store unsafe script content in a live stream key. When someone opens the affected live page, the script can run in that visitor's browser under the AVideo site. This can expose user session context or alter page behavior, but the attacker needs a canStream account first.

Executive priority

Prioritize this for AVideo platforms that allow external creators or broad streaming permissions. It is not a critical infrastructure-level flaw, but it can affect visitors and authenticated users in the site's trusted origin, so remediation should be scheduled promptly.

Technical view

The Live plugin's YouTube-style view places a transmission stream key into an HTML class attribute without escaping. A user with canStream permission can save a crafted key through saveLive.php. Later page views execute attacker-controlled JavaScript in the platform origin. The issue is CWE-79 stored XSS with CVSS 3.1 score 5.4.

Likely exposure

Internet-facing AVideo sites running version 29.0 or earlier are potentially exposed, especially where untrusted or many users have canStream permission. Exposure depends on use of the Live plugin and the YouTube-style live page path described in the advisory.

Exploitation context

The source bundle does not show KEV listing or active exploitation evidence. Exploitation requires authenticated canStream privileges and a victim visiting the affected live page, including anonymous visitors. No public weaponization details should be assumed from these sources.

Researcher notes

Evidence is strongest for the vulnerable render path and prerequisite permission. The sources do not name a fixed version, patch commit, or confirmed exploitation. Validation should focus on affected version, Live plugin usage, canStream users, and stored key hygiene without reproducing executable payloads.

Mitigation direction

  • Check WWBN AVideo advisory and release guidance for the vendor-approved fix.
  • Limit canStream permission to trusted accounts until remediation is complete.
  • Disable or restrict affected Live plugin views if operationally acceptable.
  • Review saved live stream keys for suspicious HTML-breaking content.
  • Monitor AVideo releases for fixes beyond affected versions <= 29.0.

Validation and detection

  • Inventory AVideo deployments and confirm whether version is 29.0 or earlier.
  • Confirm whether the Live plugin and YouTube-style live view are enabled.
  • Review which users or roles have canStream permission.
  • Inspect stored live transmission keys without rendering them in a browser.
  • Check access logs for unusual live page visits after stream key changes.
Prepared
Confidence
medium
Sources
3

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-79: User-session and phishing behavior lookup

Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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.

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cve · low confidence lookup

CVE-2026-45580 mapping review

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Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.4 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A: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.

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

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

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
5.4CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N2.32.7GitHub_M

Vulnerability scoring details

Base CVSS 3.1 score

5.4Medium
CVSS 3.1 vector shape for CVE-2026-45580Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
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
WWBNAVideo<= 29.0Listed
Weakness

CWE details

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

CWE-79 · source CWE mapping

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.