CVE-2025-71430: Frappe before 15.91.1 Stored XSS via Leaderboard User Names

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: none known
Published: 2026-10-12 · updated 2026-10-19
Weakness: CWE-79

Description

Frappe before 14.99.10 and 15.x before 15.91.1 contains a stored cross-site scripting vulnerability in the leaderboard page because user names are rendered without proper neutralization. Authenticated attackers can set a crafted user name that executes arbitrary JavaScript in the browsers of other users who view the leaderboard.

Affected products

frappe: before 14.99.10; from 15.0.0 before 15.91.1 — fixed in 14.99.10, 15.91.1

How to fix

Upgrade to a fixed version: frappe 14.99.10, 15.91.1. Check the vendor advisory for mitigations.

References

https://github.com/frappe/frappe/security/advisories/GHSA-cx24-w5gm-5vv9
https://www.vulncheck.com/advisories/frappe-before-15.91.1-stored-xss-via-leaderboard-user-names

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