Security readout for executives and security teams
Plain-English summary
vsDesk 14.0101 relies on browser-side checks for its CSV import feature. A logged-in administrator can bypass those checks and upload an arbitrary file, potentially taking control of the web application and compromising its data and availability. The supplied description says version 14.0402 and later contain the vendor patch.
Executive priority
Treat this as an urgent remediation item for organizations running vsDesk 14.0101. Prioritize internet-accessible or business-critical deployments and environments with weak administrator access controls. Patch promptly, preserve relevant logs, and investigate suspicious import activity. There is no supplied evidence of active exploitation, but the potential impact is full web-application compromise.
Technical view
CVE-2026-2334 is a CWE-434 unrestricted file-upload weakness in vsDesk's Import via CSV component. Server-side file-extension validation is missing. Exploitation requires authenticated administrative privileges but no user interaction, and successful abuse may achieve remote code execution in the web application's context. The supplied CVSS 4.0 score is 9.4.
Likely exposure
Exposure is most likely where vsDesk 14.0101 is deployed and administrative users can reach the CSV import function over the network. Internet exposure increases risk, although administrative credentials remain required. The bundle inconsistently lists 14.0402 as affected while also stating that 14.0402 and later are patched; confirm status with the vendor.
Exploitation context
The source bundle does not establish active exploitation, and the CVE is not identified as being in KEV. Exploitation requires a valid administrative session or compromised administrator account. The resulting code execution could affect the confidentiality, integrity, and availability of the application and connected resources accessible to its runtime identity.
Researcher notes
The central boundary failure is reliance on client-side upload validation without equivalent server-side enforcement. Administrative privileges reduce reachability but do not materially limit post-exploitation impact. Researchers should note the source inconsistency: 14.0402 appears in the affected array, while the narrative identifies 14.0402 onward as fixed. No additional affected versions should be inferred.
Mitigation direction
- Upgrade to vendor-patched version 14.0402 or later after confirming applicability with vsDesk.
- Restrict administrative and CSV import access to trusted networks and authorized personnel.
- Review and strengthen administrator authentication, including multifactor authentication where supported.
- Monitor vendor guidance for clarifications to the inconsistent affected-version information.
Validation and detection
- Inventory all vsDesk deployments and record their exact installed versions.
- Confirm with vsDesk that each installed build contains the CVE-2026-2334 patch.
- Verify untrusted files are rejected server-side by the CSV import component using safe test files.
- Review upload, authentication, and application logs for unusual administrator file-import activity.
- Assess the web application's runtime permissions and investigate unexpected files or processes.
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 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-2026-2334 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
- 9.4 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA: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.
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:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H——KasperskyVulnerability scoring details
Base CVSS 4.0 score
9.4CriticalVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
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/klsecservices/Advisories/blob/master/KLSA-00415-Missing-Server-Side-File-Extension-Validation-in-vsDesk.mdCVE reference, Kaspersky
- https://vsdesk.ru/news/vyshla-novaya-versiya-140422CVE reference, Kaspersky
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.