Vulnerability Database

352,212

Total vulnerabilities in the database

Pimcore Authenticated Stored Cross-Site Scripting (XSS) Via Search Document — pimcore / pimcore

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Summary

A Stored Cross-Site Scripting (XSS) vulnerability in PIMCORE allows remote attackers to inject arbitrary web script or HTML via the PDF upload functionality. This can result in the execution of malicious scripts in the context of the user's browser when the PDF is viewed, leading to potential session hijacking, defacement of web pages, or unauthorized access to sensitive information.

Details

The vulnerability is present in the PDF upload functionality of the PIM Core Upload module. When a user uploads a PDF file, the application fails to properly sanitize the content, allowing embedded scripts to be executed when the PDF is viewed. The affected code is located in the file handling and rendering logic of the PDF upload feature.

PoC

  1. Log in as Administrator image

  2. Hover to Assets image

  3. Right click and click "Add Asset(s) > upload files image

  4. Upload malicious pdf image

  5. Click on search and select document image

  6. copy the path and open to a new tab

https://demo.pimcore.fun/admin/Sample C

image

  1. XSS PDF can be access without authentication.

image

Image showing no cookies indicator that there are no session currently in

image

Impact

This is a Stored Cross-Site Scripting (XSS) vulnerability. It impacts any user who views the malicious PDF, potentially leading to session hijacking, defacement of web pages, or unauthorized access to sensitive information. The severity is high due to the potential for significant impact on confidentiality and integrity.

  • Published: Jan 28, 2025
  • Updated: Apr 30, 2025
  • GHSA: GHSA-xr3m-6gq6-22cg
  • Severity: High
  • Exploit:
  • CISA KEV:

CVSS v3:

  • Severity: Unknown
  • Score:
  • AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.