1E-Exchange-DisplayMessage instruction allows for arbitrary code execution
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
The 1E-Exchange-DisplayMessageinstruction that is part of the End-User Interaction product pack available on the 1E Exchange does not properly validate the Caption or Message parameters, which allows for a specially crafted input to perform arbitrary code execution with SYSTEM permissions. This instruction only runs on Windows clients. To remediate this issue DELETE the instruction “Show dialogue with caption %Caption% and message %Message%” from the list of instructions in the Settings UI, and replace it with the new instruction 1E-Exchange-ShowNotification instruction available in the updated End-User Interaction product pack. The new instruction should show as “Show %Type% type notification with header %Header% and message %Message%” with a version of 7.1 or above.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-5964
- 2026-10-03 Alias added: GHSA-v92h-jfmf-wx2h
References
More 1E Platform vulnerabilities
- TI-2023-24179 1E-Exchange-CommandLinePing instruction before v18.1 allows for arbitrary code execution CVSS 3.1CRITICAL 9.9
- TI-2023-24177 1E-Exchange-URLResponseTime instruction before v20.1 allows arbitrary code execution CVSS 3.1CRITICAL 9.9
- TI-2023-24178 Blind SQL vulnerability in 1E platform CVSS 3.1CRITICAL 9.9
- TI-2025-01448 Symbolic Link Exploit in 1E Client's - Nomad module allows Arbitrary File Deletion CVSS 3.1HIGH 7.8
- TI-2024-06676 The Duende Identity Server based component in 1E Platform may allow URL redirections to untrusted websites. CVSS 3.1MEDIUM 6.1
Sources
- CVE-2023-5964 · CVE Program
- CVE-2023-5964 · NVD
- FIRST EPSS
- GHSA-v92h-jfmf-wx2h · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences