CVE-2012-4937

Session fixation vulnerability in the web interface in Pattern Insight 2.3 allows remote attackers to hijack web sessions via a jsession_id cookie.

Published: 2012-11-18 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-4937 is rated Moderate Risk (57.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.42%). EPSS rose +1.49% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2012-4937

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.93% 2.42% +1.49%
2 2025-03-30 0.82% 0.93% +0.11%
3 2025-03-29 — 0.82% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-4937

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2012-4937

NVD evaluator notes for CVE-2012-4937

Comment: Per: http://cwe.mitre.org/data/definitions/384.html 'CWE-384: Session Fixation'

Affected software / configurations for CVE-2012-4937

Vendor Product Version Raw CPE
patterninsight pattern_insight 2.3 cpe:2.3:a:patterninsight:pattern_insight:2.3:*:*:*:*:*:*:*

References for CVE-2012-4937

cvelogic Threat Intelligence