CVE-2001-1545

Macromedia JRun 3.0 and 3.1 appends the jsessionid to URL requests (a.k.a. rewriting) when client browsers have cookies enabled, which allows remote attackers to obtain session IDs and hijack sessions via HTTP referrer fields or sniffing.

Published: 2001-12-31 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2001-1545 is rated Moderate Risk (44.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.37%). 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-2001-1545

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 0.39% 1.37% +0.99%
2 2025-03-17 0.45% 0.39% -0.07%
3 2024-12-17 — 0.45% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2001-1545

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2001-1545

Affected software / configurations for CVE-2001-1545

Vendor Product Version Raw CPE
macromedia jrun 3.0 cpe:2.3:a:macromedia:jrun:3.0:*:*:*:*:*:*:*
macromedia jrun 3.1 cpe:2.3:a:macromedia:jrun:3.1:*:*:*:*:*:*:*

References for CVE-2001-1545

cvelogic Threat Intelligence