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Vulnerability record · CVE-2026-68900 · published 19 August 2026

CVE-2026-68900: Cross-site scripting vulnerability

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.

7.6 CVSS 3.1 High EPSS 0.35% · top 73.9% CWE-79 · Cross-site scripting Deferred
7.6CVSS 3.1 base score
0.35%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
9 Sep 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N

References

LinkTags
https://github.com/wekan/wekan/commit/2d32e34621d340b00be4f66a6a2106ab4575cc70
https://github.com/wekan/wekan/releases/tag/v10.23
https://github.com/wekan/wekan/security/advisories/GHSA-8r5p-4q9j-f5jx
https://github.com/wekan/wekan/security/advisories/GHSA-8r5p-4q9j-f5jx

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Source: NIST National Vulnerability Database (record CVE-2026-68900), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.