Wekan up to 10.22 HTML Export client/lib/exportHTML.js addBoardHTMLToZip HTML injection

Summaryinfo

A vulnerability labeled as problematic has been found in Wekan up to 10.22. The affected element is the function addBoardHTMLToZip of the file client/lib/exportHTML.js of the component HTML Export. Such manipulation leads to HTML injection. This vulnerability is referenced as CVE-2026-68900. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Wekan up to 10.22. Affected by this issue is the function addBoardHTMLToZip of the file client/lib/exportHTML.js of the component HTML Export. The manipulation with an unknown input leads to a html injection vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. CVE summarizes:

Wekan is open source kanban built with Meteor. From 8.72 until 10.23, addBoardHTMLToZip() in client/lib/exportHTML.js read a card title and body through textContent, which decoded entity-encoded markup, and then interpolated titleText and allText into content.innerHTML in the exported index.html. A board member could store an entity-encoded event-handler payload in a card title that remained inert on the live board but was reparsed and executed when a recipient clicked the card in the downloaded HTML export, allowing the script to read and transmit all board data contained in that export, including content added after the attacker's membership was removed. Version 10.23 builds the modal with DOM nodes and assigns untrusted values through textContent. This issue is fixed in version 10.23.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-68900 since 07/31/2026. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 10.23 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• Wekan

Version

• 10.0
• 10.1
• 10.2
• 10.3
• 10.4
• 10.5
• 10.6
• 10.7
• 10.8
• 10.9
• 10.10
• 10.11
• 10.12
• 10.13
• 10.14
• 10.15
• 10.16
• 10.17
• 10.18
• 10.19
• 10.20
• 10.21
• 10.22

Website

• Product: https://github.com/wekan/wekan/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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