Security readout for executives and security teams
Plain-English summary
CVE-2022-50893 is a critical unauthenticated remote code execution issue in VIAVIWEB Wallpaper Admin 1.0. A flaw in image upload handling can allow an attacker to place executable PHP on the server. If this product is internet-facing, compromise could affect confidentiality, integrity, and availability of the hosting system.
Executive priority
Treat as urgent for any confirmed deployment, especially internet-facing sites. The issue can lead to full server compromise without authentication, and public exploit information is available.
Technical view
The vulnerability is classified as CWE-434, unrestricted upload of a file with dangerous type. The reported vulnerable component is add_gallery_image.php in VIAVIWEB Wallpaper Admin 1.0. CVSS 3.1 is 9.8 with network access, low complexity, no privileges, and no user interaction required.
Likely exposure
Exposure is most likely where VIAVIWEB Wallpaper Admin 1.0 is deployed on a web server, especially if publicly reachable. The source bundle does not identify other affected versions or CPEs.
Exploitation context
A public Exploit-DB entry is listed, indicating public exploit information exists. The CVE is not marked as KEV in the provided data, and no cited source confirms active exploitation in the wild.
Researcher notes
Evidence supports a critical file-upload RCE in version 1.0. Public sources name the vulnerable endpoint and Exploit-DB reference, but the bundle does not provide a vendor patch, official advisory details, or active exploitation confirmation.
Mitigation direction
- Check VIAVIWEB and VulnCheck guidance for any fixed version or official workaround.
- Remove public internet access to affected admin interfaces where possible.
- Restrict access to trusted networks or authenticated administrative users.
- Disable or tightly control image upload functionality if business operations allow.
- Back up the server and prepare incident response if exposure is confirmed.
Validation and detection
- Inventory systems for VIAVIWEB Wallpaper Admin 1.0.
- Confirm whether the application is reachable from the internet.
- Review web logs for suspicious requests to add_gallery_image.php.
- Inspect upload directories for unexpected PHP or executable files.
- Verify whether any vendor-provided update or workaround has been applied.
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-434: 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2022-50893 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
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-51033CVE reference · exploit
- Vendor HomepageCVE reference · product
- VulnCheck Advisory: VIAVIWEB Wallpaper Admin 1.0 - Code Execution via Image UploadCVE reference · third-party-advisory
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.
Unrestricted Upload of File with Dangerous Type
Unrestricted Upload of File with Dangerous Type represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.