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Vulnerability record · CVE-2015-1555 · published 7 August 2017

CVE-2015-1555: Zend framework improper input validation vulnerability

Zend · Zend Framework

Zend/Session/SessionManager in Zend Framework 2.2.x before 2.2.9, 2.3.x before 2.3.4 allows remote attackers to create valid sessions without using session validators.

9.1 CVSS 3.0 Critical EPSS 1.4% · top 28.7% CWE-20 · Improper input validation
9.1CVSS 3.0 base score, v2 6.4
1.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Zend/Session/SessionManager in Zend Framework 2.2.x before 2.2.9, 2.3.x before 2.3.4 allows remote attackers to create valid sessions without using session validators.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://framework.zend.com/security/advisory/ZF2015-01 Vendor Advisory
http://framework.zend.com/security/advisory/ZF2015-01 Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2015-1555), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.