Vulnerability · Published Apr 22, 2026 · Assigned by Fluid Attacks
CVE-2026-3837Frappe Framework 16.10.0 - Stored DOM XSS in Multiple Field Formatters
Medium 4.6
In plain English
A medium-severity cross-site scripting in Frappe from Frappe. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).
Severity (CVSS 4.0)4.6Medium
Exploit odds (30 days)0.2%top 91.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An authenticated attacker can persist crafted values in multiple field types and trigger client-side script execution when another user opens the affected document in Desk. The vulnerable formatter implementations interpolate stored values into raw HTML attributes and element content without escaping This issue affects Frappe: 16.10.0.
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
References
- https://fluidattacks.com/es/advisories/sabina third-party-advisory
- https://github.com/frappe/frappe product
- https://github.com/frappe/frappe/pull/38796 patch