CVE-2026-81731 Frappe 15.11.0 through 16.32.0 Stored XSS via Workspace Link Description
A Workspace Manager can inject malicious scripts into workspace card descriptions, leading to session hijacking of other users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-81731?
CVE-2026-81731 is a medium-severity cross-site scripting vulnerability in frappe, published on 27 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Frappe 15.11.0 through 16.32.0 stores and renders the workspace card description without XSS filtering. The description field of the Workspace Link doctype is declared with "ignore_xss_filter": 1 in frappe/desk/doctype/workspace_link/workspace_link.json, and _sanitize_content() in frappe/model/base_document.py skips any field carrying that flag, so the value is stored exactly as submitted. frappe.desk.desktop.get_desktop_page returns it unchanged, and LinksWidget.set_body() in frappe/public/js/frappe/widgets/links_widget.js interpolates it into a Bootstrap popover created with html: true, by way of the __() translation helper, which performs no HTML escaping. A user holding the Workspace Manager role can therefore place arbitrary markup in a public workspace's card description and have it execute in the session of any desk user who opens that workspace and hovers the description, including higher-privileged users, allowing session token theft and authenticated requests as the victim. The flag is removed on the development branch but remains present in the shipped 15.x and 16.x release lines, so no released version carries the fix.
Weakness: CWE-79
Which versions are affected by CVE-2026-81731?
It affects 1 product.
Products include Frappe Frappe.
How do I fix CVE-2026-81731?
No fix has been published for CVE-2026-81731 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-81731 being exploited?
There is no known exploitation of CVE-2026-81731 in the wild and no public exploit code.
Other vulnerabilities in frappe
- CVE-2019-14965 Code injection in n/a
- CVE-2026-35614 Frappe has a SQL injection in bulk_update
- CVE-2026-31877 Frappe SQL Injection due to improper field sanitization
- CVE-2025-68929 Frappe may be vulnerable remote code execution due to server-side template injection
- CVE-2019-14966 SQL injection in n/a
Sources
Also known as GHSA-8fp2-5hmm-fgqh.