CVE-2026-3673: Frappe Framework 16.10.0 - Stored DOM XSS in Tag Pill Renderer

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-04-22 · updated 2026-06-17
Weakness: CWE-79

Description

An authenticated attacker can store a crafted tag value in _user_tags and trigger JavaScript execution when a victim opens the list/report view where tags are rendered. The vulnerable renderer interpolates tag content into HTML attributes and element content without escaping. This issue affects Frappe: 16.10.10.

Affected products

frappe: 16.10.10

References

https://fluidattacks.com/es/advisories/silvio
https://github.com/frappe/frappe
https://fluidattacks.com/es/advisories/silvio

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