Security readout for executives and security teams
Plain-English summary
CVE-2026-33238 affects WWBN AVideo before 26.0. A logged-in uploader can use a vulnerable file-listing endpoint to discover .mp4 file names and full server paths outside the intended media area. This is information disclosure, not direct file download or code execution based on the provided sources.
Executive priority
Prioritize remediation for public or multi-user AVideo platforms, especially those hosting private, premium, or sensitive media. This is a moderate confidentiality issue requiring authenticated access, but exposed path data can support privacy breaches or follow-on targeting.
Technical view
AVideo’s listFiles.json.php accepted a path POST parameter and passed it to glob() without constraining it to an allowed base directory. This CWE-22 path traversal allows authenticated uploader-level users to enumerate .mp4 files and absolute filesystem paths across the server. Version 26.0 includes a patch. CVSS is 4.3, AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
Likely exposure
Exposure is limited to AVideo deployments below version 26.0 where untrusted or semi-trusted users can authenticate with uploader privileges. Internet-facing AVideo portals with many contributors have higher practical risk than closed, tightly administered installations.
Exploitation context
The issue requires network access and an authenticated uploader account. The provided sources do not indicate public exploit availability or active exploitation, and it is not listed as KEV in the supplied data. Impact is limited to confidentiality of media filenames and absolute paths.
Researcher notes
The core issue is missing base-directory enforcement before glob() in listFiles.json.php. The advisory states enumeration is limited to .mp4 filenames and absolute paths. Do not assume file content disclosure, privilege escalation, or remote code execution without additional evidence.
Mitigation direction
- Upgrade WWBN AVideo to version 26.0 or later.
- Review vendor advisory and patch commit for deployment-specific guidance.
- Restrict uploader privileges to trusted users until upgraded.
- Audit whether private or premium media paths were exposed in logs or application activity.
Validation and detection
- Inventory AVideo instances and confirm installed versions.
- Identify whether any instance is below version 26.0.
- Review user roles for accounts with uploader permissions.
- Check application logs for unusual access to listFiles.json.php.
- Confirm the patched version no longer permits arbitrary path enumeration.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. 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 lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-33238 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
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.
SSVC decision data
CVSS vector scores
1 official scoreWe 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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N2.81.4GitHub_MVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/WWBN/AVideo/security/advisories/GHSA-4wmm-6qxj-fpj4CVE reference, GitHub_M · x_refsource_CONFIRM
- https://github.com/WWBN/AVideo/issues/10403CVE reference, GitHub_M · x_refsource_MISC
- https://github.com/WWBN/AVideo/commit/870cf24a7632d4f1a5d5549b59103c18f39e3a21CVE reference, GitHub_M · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.