Security readout for executives and security teams
Plain-English summary
This flaw can let an authenticated remote user read files from a vulnerable WWBN AVideo server. The main business risk is disclosure of sensitive local files, not system takeover. Exposure appears limited to AVideo deployments running the specified dev master commit.
Executive priority
Treat as a targeted confidentiality risk. Prioritize internet-facing or shared AVideo deployments, especially where sensitive server-side files could expose credentials, configuration, or operational data.
Technical view
CVE-2023-49862 is a CWE-73 information disclosure issue in WWBN AVideo's aVideoEncoderReceiveImage.json.php image upload handling. A specially crafted HTTP request abusing the downloadURL_gifimage parameter can cause arbitrary file read. CVSS is 6.5 with high confidentiality impact only.
Likely exposure
Likely exposure is WWBN AVideo installations based on dev master commit 15fed957fb, especially where the affected image upload or encoder receive endpoint is reachable over the network by low-privileged users.
Exploitation context
The source bundle does not report active exploitation, and CISA KEV status is false. The CVSS vector indicates network access, low privileges, no user interaction, and high confidentiality impact.
Researcher notes
Evidence identifies arbitrary file read through downloadURL_gifimage in aVideoEncoderReceiveImage.json.php. The bundle does not include exploit-in-the-wild evidence, a fixed version, or detailed vendor mitigation. Avoid assuming broader AVideo version impact.
Mitigation direction
- Check WWBN AVideo and Talos guidance for a fixed commit or release.
- Inventory AVideo deployments and identify whether commit 15fed957fb is present.
- Restrict access to encoder and image upload endpoints to trusted users only.
- Reduce public exposure of affected AVideo services until vendor guidance is applied.
- Monitor logs for unusual requests involving downloadURL_gifimage.
Validation and detection
- Confirm whether any AVideo deployment runs dev master commit 15fed957fb.
- Review routing and access controls for aVideoEncoderReceiveImage.json.php.
- Check whether low-privileged accounts can reach the affected upload path.
- Review web logs for suspicious downloadURL_gifimage activity.
- Verify remediation against official vendor or Talos guidance.
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-73: 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-2023-49862 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
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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.
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:H/I:N/A:N2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source materials
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.
External Control of File Name or Path
External Control of File Name or Path represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.