Security readout for executives and security teams
Plain-English summary
CVE-2022-50904 affects Wondershare UBackit 2.0.5 on Windows. A misconfigured service path in the wsbackup service can let a local user gain LocalSystem-level execution when the service starts. This is mainly a workstation or server endpoint privilege-escalation issue, not a remote internet-facing flaw.
Executive priority
Treat as high priority for managed endpoints, especially shared workstations or systems used by less-trusted users. It is not described as remotely exploitable, but it can turn a minor local foothold into full host control.
Technical view
The issue is CWE-428: an unquoted service path in Wondershare UBackit 2.0.5's wsbackup service. With low local privileges, an attacker may place a malicious executable in a path resolution location and have it run with LocalSystem privileges at service startup. CVSS v4.0 is listed as 8.5 High.
Likely exposure
Organizations are exposed if Wondershare UBackit 2.0.5 is installed on Windows systems and the wsbackup service remains configured with an unquoted executable path. Exposure requires local access, but successful abuse can fully compromise the affected host.
Exploitation context
The source bundle includes an ExploitDB reference, indicating public exploit information exists. CISA KEV status is false in the provided data, so there is no source-backed evidence here of known active exploitation. Attackers need local low-privileged access.
Researcher notes
Evidence is strongest for affected version 2.0.5 and the wsbackup unquoted service path. The provided sources do not name a vendor patch, fixed version, or official workaround. Avoid assuming broader Wondershare products or versions are affected without additional evidence.
Mitigation direction
- Check Wondershare guidance for an updated or fixed UBackit release.
- Upgrade or remove Wondershare UBackit 2.0.5 where business use is not required.
- Correct the wsbackup service path if vendor guidance supports doing so.
- Limit local interactive access on systems running affected software.
- Monitor affected endpoints for unusual service-start or privilege-escalation activity.
Validation and detection
- Inventory endpoints for Wondershare UBackit 2.0.5 installations.
- Confirm whether the wsbackup service exists on identified systems.
- Review the wsbackup service executable path for unquoted spaces.
- Prioritize systems where untrusted users have local access.
- Track remediation status against vendor or security-team-approved 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-428: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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-2022-50904 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
- High
- CVSS
- 8.5 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA: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:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
8.5HighVector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-50758CVE reference · exploit
- Vendor HomepageCVE reference · product
- VulnCheck Advisory: Wondershare UBackit 2.0.5 - 'wsbackup' Unquoted Service PathCVE 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.
Unquoted Search Path or Element
Unquoted Search Path or Element represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.