CVE-2009-4533

The Webform module 5.x before 5.x-2.8 and 6.x before 6.x-2.8, a module for Drupal, does not prevent caching of a page that contains token placeholders for a default value, which allows remote attackers to read session variables via unspecified vectors.

Published: 2009-12-31 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4533 is rated Moderate Risk (43.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.58%). 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-2009-4533

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 2025-12-28 0.55% 0.58% +0.03%
2 2025-12-27 0.58% 0.55% -0.03%
3 2025-10-28 — 0.58% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4533

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-2009-4533

Affected software / configurations for CVE-2009-4533

Vendor Product Version Raw CPE
nathan_haug webform <= 5.x-2.7 cpe:2.3:a:nathan_haug:webform:*:*:*:*:*:*:*:*
nathan_haug webform <= 6.x-2.7 cpe:2.3:a:nathan_haug:webform:*:*:*:*:*:*:*:*
nathan_haug webform 5.x-1.2 cpe:2.3:a:nathan_haug:webform:5.x-1.2:*:*:*:*:*:*:*
nathan_haug webform 5.x-1.3 cpe:2.3:a:nathan_haug:webform:5.x-1.3:*:*:*:*:*:*:*
nathan_haug webform 5.x-1.4 cpe:2.3:a:nathan_haug:webform:5.x-1.4:*:*:*:*:*:*:*
nathan_haug webform 5.x-1.5 cpe:2.3:a:nathan_haug:webform:5.x-1.5:*:*:*:*:*:*:*
nathan_haug webform 5.x-1.6 cpe:2.3:a:nathan_haug:webform:5.x-1.6:*:*:*:*:*:*:*
nathan_haug webform 5.x-1.7 cpe:2.3:a:nathan_haug:webform:5.x-1.7:*:*:*:*:*:*:*
nathan_haug webform 5.x-1.8 cpe:2.3:a:nathan_haug:webform:5.x-1.8:*:*:*:*:*:*:*
nathan_haug webform 5.x-1.9 cpe:2.3:a:nathan_haug:webform:5.x-1.9:*:*:*:*:*:*:*
nathan_haug webform 5.x-1.10 cpe:2.3:a:nathan_haug:webform:5.x-1.10:*:*:*:*:*:*:*
nathan_haug webform 5.x-1.x-dev cpe:2.3:a:nathan_haug:webform:5.x-1.x-dev:*:*:*:*:*:*:*
nathan_haug webform 5.x-2.0 cpe:2.3:a:nathan_haug:webform:5.x-2.0:*:*:*:*:*:*:*
nathan_haug webform 5.x-2.0-beta0 cpe:2.3:a:nathan_haug:webform:5.x-2.0-beta0:*:*:*:*:*:*:*
nathan_haug webform 5.x-2.0-beta1 cpe:2.3:a:nathan_haug:webform:5.x-2.0-beta1:*:*:*:*:*:*:*
nathan_haug webform 5.x-2.0-beta2 cpe:2.3:a:nathan_haug:webform:5.x-2.0-beta2:*:*:*:*:*:*:*
nathan_haug webform 5.x-2.0-beta3 cpe:2.3:a:nathan_haug:webform:5.x-2.0-beta3:*:*:*:*:*:*:*
nathan_haug webform 5.x-2.1 cpe:2.3:a:nathan_haug:webform:5.x-2.1:*:*:*:*:*:*:*
nathan_haug webform 5.x-2.1.1 cpe:2.3:a:nathan_haug:webform:5.x-2.1.1:*:*:*:*:*:*:*
nathan_haug webform 5.x-2.1.2 cpe:2.3:a:nathan_haug:webform:5.x-2.1.2:*:*:*:*:*:*:*
nathan_haug webform 5.x-2.1.3 cpe:2.3:a:nathan_haug:webform:5.x-2.1.3:*:*:*:*:*:*:*
nathan_haug webform 5.x-2.2 cpe:2.3:a:nathan_haug:webform:5.x-2.2:*:*:*:*:*:*:*
nathan_haug webform 5.x-2.3 cpe:2.3:a:nathan_haug:webform:5.x-2.3:*:*:*:*:*:*:*
nathan_haug webform 5.x-2.4 cpe:2.3:a:nathan_haug:webform:5.x-2.4:*:*:*:*:*:*:*
nathan_haug webform 5.x-2.5 cpe:2.3:a:nathan_haug:webform:5.x-2.5:*:*:*:*:*:*:*
nathan_haug webform 5.x-2.6 cpe:2.3:a:nathan_haug:webform:5.x-2.6:*:*:*:*:*:*:*
nathan_haug webform 5.x-2.x-dev cpe:2.3:a:nathan_haug:webform:5.x-2.x-dev:*:*:*:*:*:*:*
nathan_haug webform 6.x-2.0-beta1 cpe:2.3:a:nathan_haug:webform:6.x-2.0-beta1:*:*:*:*:*:*:*
nathan_haug webform 6.x-2.0-beta2 cpe:2.3:a:nathan_haug:webform:6.x-2.0-beta2:*:*:*:*:*:*:*
nathan_haug webform 6.x-2.0-beta3 cpe:2.3:a:nathan_haug:webform:6.x-2.0-beta3:*:*:*:*:*:*:*
nathan_haug webform 6.x-2.0-beta4 cpe:2.3:a:nathan_haug:webform:6.x-2.0-beta4:*:*:*:*:*:*:*
nathan_haug webform 6.x-2.0-beta5 cpe:2.3:a:nathan_haug:webform:6.x-2.0-beta5:*:*:*:*:*:*:*
nathan_haug webform 6.x-2.0-beta6 cpe:2.3:a:nathan_haug:webform:6.x-2.0-beta6:*:*:*:*:*:*:*
nathan_haug webform 6.x-2.1 cpe:2.3:a:nathan_haug:webform:6.x-2.1:*:*:*:*:*:*:*
nathan_haug webform 6.x-2.1-1 cpe:2.3:a:nathan_haug:webform:6.x-2.1-1:*:*:*:*:*:*:*
nathan_haug webform 6.x-2.1.2 cpe:2.3:a:nathan_haug:webform:6.x-2.1.2:*:*:*:*:*:*:*
nathan_haug webform 6.x-2.1.3 cpe:2.3:a:nathan_haug:webform:6.x-2.1.3:*:*:*:*:*:*:*
nathan_haug webform 6.x-2.2 cpe:2.3:a:nathan_haug:webform:6.x-2.2:*:*:*:*:*:*:*
nathan_haug webform 6.x-2.3 cpe:2.3:a:nathan_haug:webform:6.x-2.3:*:*:*:*:*:*:*
nathan_haug webform 6.x-2.4 cpe:2.3:a:nathan_haug:webform:6.x-2.4:*:*:*:*:*:*:*
nathan_haug webform 6.x-2.5 cpe:2.3:a:nathan_haug:webform:6.x-2.5:*:*:*:*:*:*:*
nathan_haug webform 6.x-2.6 cpe:2.3:a:nathan_haug:webform:6.x-2.6:*:*:*:*:*:*:*
nathan_haug webform 6.x-2.x-dev cpe:2.3:a:nathan_haug:webform:6.x-2.x-dev:*:*:*:*:*:*:*

References for CVE-2009-4533

cvelogic Threat Intelligence