CVE-2025-71431: Frappe before 15.86.0 LDAP Injection via Unsanitized Endpoint Parameters

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% 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-90

Description

Frappe before 14.99.2 and 15.x before 15.86.0 contains an LDAP injection vulnerability because certain endpoints do not sanitize user-supplied parameters before using them in LDAP queries. Attackers can supply crafted LDAP filter syntax through these parameters to alter the resulting directory queries.

Affected products

frappe: before 14.99.2; from 15.0.0 before 15.86.0 — fixed in 14.99.2, 15.86.0

How to fix

Upgrade to a fixed version: frappe 14.99.2, 15.86.0. Check the vendor advisory for mitigations.

References

https://github.com/frappe/frappe/security/advisories/GHSA-qrq5-v93p-8xhw
https://www.vulncheck.com/advisories/frappe-before-15.86.0-ldap-injection-via-unsanitized-endpoint-parameters

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