What’s Vulnerable › Vulnerabilities

CVE-2018-6520

• Severity: medium (CVSS 6.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-02-02 · updated 2026-06-17
• Weakness: CWE-601

Description

SimpleSAMLphp before 1.15.2 allows remote attackers to bypass an open redirect protection mechanism via crafted authority data in a URL.

Affected products

• simplesamlphp: from 1.12.0 before 1.15.1 — fixed in 1.15.1

How to fix

Upgrade to a fixed version: simplesamlphp 1.15.1. Check the vendor advisory for mitigations.

References

• https://simplesamlphp.org/security/201801-02
• https://simplesamlphp.org/security/201801-02

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