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VulnerabilityPublished

CVE-2026-3217: Drupal SAML SSO – Service Provider · Cross-site Scripting

Affects Drupal SAML SSO – Service ProviderSource CVE Database V5

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Not known to be exploited · CVSS 6.1 Medium : upgrade to 3.1.3 when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
6.1Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.1.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 25 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade Drupal SAML SSO – Service Provider to 3.1.3.

Affected software

ProductAffectedFixed in
DrupalSAML SSO - Service ProviderAffected
  • <3.1.3
Fixed in
  • 3.1.3

AI-suggested

To mitigate CVE-2026-3217, organizations should immediately plan to upgrade the Drupal SAML SSO - Service Provider module to version 3.1.3 or later once the patch is released. Until then, administrators should implement strict input validation and output encoding on any user-controllable inputs related to SAML processing. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in browsers. Monitor web server and application logs for suspicious input patterns or anomalous SAML responses. Limit the exposure of the SAML SSO endpoint to trusted networks and users where feasible. Conduct regular security assessments and penetration testing focusing on authentication modules. Educate developers and administrators on secure coding practices to prevent injection flaws. Finally, maintain an incident response plan to quickly address any exploitation attempts.

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.

References

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