# CVE-2023-5964: 1E-Exchange-DisplayMessage instruction allows for arbitrary code execution

> Attackers can execute arbitrary code with SYSTEM privileges via crafted input in the 1E Exchange DisplayMessage instruction.

- **Severity:** Critical 9.9 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Nov 2023
- **Updated:** 12 Jun 2025
- **Also known as:** GHSA-v92h-jfmf-wx2h

## What is CVE-2023-5964?

CVE-2023-5964 is a critical code injection vulnerability in 1E Platform, published on 6 Nov 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

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.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2023-5964?

It affects 1 product.


Products: 1e Platform.

## How do I fix CVE-2023-5964?

No fix has been published for CVE-2023-5964 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-5964 being exploited?

There is no known exploitation of CVE-2023-5964 in the wild and no public exploit code.

## Other vulnerabilities in 1E Platform

- [CVE-2023-45161](https://insights.sbomify.com/CVE-2023-45161/): 1E-Exchange-URLResponseTime instruction before v20.1 allows arbitrary code execution (critical 9.9)
- [CVE-2023-45163](https://insights.sbomify.com/CVE-2023-45163/): 1E-Exchange-CommandLinePing instruction before v18.1 allows for arbitrary code execution (critical 9.9)
- [CVE-2023-45162](https://insights.sbomify.com/CVE-2023-45162/): Blind SQL vulnerability in 1E platform (critical 9.9)
- [CVE-2025-1683](https://insights.sbomify.com/CVE-2025-1683/): Symbolic Link Exploit in 1E Client's - Nomad module allows Arbitrary File Deletion (high 7.8)
- [CVE-2024-7211](https://insights.sbomify.com/CVE-2024-7211/): The Duende Identity Server based component in 1E Platform may allow URL redirections to untrusted websites. (medium 4.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-5964 and fix it if it is affected.

What it is: CVE-2023-5964 is a critical code injection vulnerability in 1E Platform, published on 6 Nov 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-5964 in the wild and no public exploit code.

Affected product: 1E Platform. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2023-5964/ (Markdown: https://insights.sbomify.com/CVE-2023-5964/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-5964
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-5964
- OSV: https://osv.dev/vulnerability/CVE-2023-5964

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-5964/
Summaries are generated and may contain mistakes; the official description above is the record.