CVE-2026-57532
Deferred Deferred - Pending Action
JavaScript Injection in PDF Editor Backend

Publication date: 2026-06-25

Last updated on: 2026-06-25

Assigner: rami.io

Description
Malicious HTML content contained in the layout specification of a PDF ticket or badge layout was executed when the PDF editor is opened in the browser. This could allow one backend user to inject JavaScript into the browser context of another backend user. Due to requirements of the PDF rendering and editing libraries used, this is one of the few pages in our backend that do not have a strong Content-Security-Policy that would render this capability useless for most scenarios.
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Meta Information
Published
2026-06-25
Last Modified
2026-06-25
Generated
2026-06-25
AI Q&A
2026-06-25
EPSS Evaluated
N/A
NVD
CVE-2026-57532
EUVD
EUVD-2026-39425
Affected Vendors & Products
Currently, no data is known.
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-80 The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages.
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Impact Analysis

This vulnerability can allow an attacker who has backend access to inject and execute JavaScript in the browser context of another backend user. This could lead to unauthorized actions being performed on behalf of the victim user, data theft, session hijacking, or other malicious activities within the backend environment.

Executive Summary

This vulnerability involves malicious HTML content embedded within the layout specification of a PDF ticket or badge. When the PDF editor is opened in a browser, this malicious content is executed, allowing one backend user to inject JavaScript into the browser context of another backend user.

The issue arises because the PDF rendering and editing libraries used require this page in the backend to have a weak Content-Security-Policy, which normally would prevent such attacks. This weakness enables the execution of injected scripts in scenarios where it would otherwise be blocked.

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