CVE-2017-12870

5.9 mediumEPSS 0.9%

Medium (5.9) in simplesamlphp simplesamlphp. EPSS 0.9% chance of exploitation in the next 30 days.

SimpleSAMLphp 1.14.12 and earlier make it easier for man-in-the-middle attackers to obtain sensitive information by leveraging use of the aesEncrypt and aesDecrypt methods in the SimpleSAML/Utils/Crypto class to protect session identifiers in replies to non-HTTPS service providers.

Severity

CVSS 3.0

5.9 medium

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
CWE: CWE-200
Published: 2017-09-01
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

simplesamlphp:simplesamlphp

References

https://simplesamlphp.org/security/201704-01
https://simplesamlphp.org/security/201704-01

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