Frappe up to 16.32.0 Workspace Link Widget links_widget.js LinksWidget.set_body Description cross site scripting

Summaryinfo

A vulnerability was found in Frappe up to 16.32.0. It has been rated as problematic. The impacted element is the function LinksWidget.set_body of the file frappe/public/js/frappe/widgets/links_widget.js of the component Workspace Link Widget. This manipulation of the argument Description causes cross site scripting. This vulnerability appears as CVE-2026-81731. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Frappe up to 16.32.0. It has been declared as problematic. Affected by this vulnerability is the function LinksWidget.set_body of the file frappe/public/js/frappe/widgets/links_widget.js of the component Workspace Link Widget. The manipulation of the argument description 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:

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.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-81731 since 08/27/2026. The exploitation appears to be easy. The attack can be launched remotely. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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

Productinfo

Name

• Frappe

Version

• 16.0
• 16.1
• 16.2
• 16.3
• 16.4
• 16.5
• 16.6
• 16.7
• 16.8
• 16.9
• 16.10
• 16.11
• 16.12
• 16.13
• 16.14
• 16.15
• 16.16
• 16.17
• 16.18
• 16.19
• 16.20
• 16.21
• 16.22
• 16.23
• 16.24
• 16.25
• 16.26
• 16.27
• 16.28
• 16.29
• 16.30
• 16.31
• 16.32.0

Website

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

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