eKoopmans html2pdf.js up to 0.13.x cross site scripting

Summaryinfo

A vulnerability has been found in eKoopmans html2pdf.js up to 0.13.x and classified as problematic. Affected by this issue is some unknown functionality. This manipulation causes cross site scripting. This vulnerability is registered as CVE-2026-22787. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic was found in eKoopmans html2pdf.js up to 0.13.x. Affected by this vulnerability is an unknown part. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

html2pdf.js converts any webpage or element into a printable PDF entirely client-side. Prior to 0.14.0, html2pdf.js contains a cross-site scripting (XSS) vulnerability when given a text source rather than an element. This text is not sufficiently sanitized before being attached to the DOM, allowing malicious scripts to be run on the client browser and risking the confidentiality, integrity, and availability of the page's data. This vulnerability has been fixed in [email protected].

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-22787 since 01/09/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 0.14.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 988826e336035b39a8608182d7b73c0e3cd78c7b is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-2450). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• JavaScript Library

Vendor

• eKoopmans

Name

• html2pdf.js

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13

License

• open-source

Website

• Product: https://github.com/eKoopmans/html2pdf.js/

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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