CVE-2026-3217: SAML SSO - Service Provider - Critical - Cross-site scripting - SA-CONTRIB-2026-018

Severity: medium (CVSS 6.1 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: 2026-03-25 · updated 2026-06-17
Weakness: CWE-79

Description

Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal SAML SSO - Service Provider allows Cross-Site Scripting (XSS).This issue affects SAML SSO - Service Provider: from 0.0.0 before 3.1.3.

Affected products

Drupal SAML SSO - Service Provider: before 3.1.3 — fixed in 3.1.3

How to fix

Upgrade to a fixed version: Drupal SAML SSO - Service Provider 3.1.3. Check the vendor advisory for mitigations.

References

https://www.drupal.org/sa-contrib-2026-018

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