CVE-2009-4898

Cross-site request forgery (CSRF) vulnerability in TWiki before 4.3.2 allows remote attackers to hijack the authentication of arbitrary users for requests that update pages, as demonstrated by a URL for a save script in the ACTION attribute of a FORM element, in conjunction with a call to the submit method in the onload attribute of a BODY element. NOTE: this issue exists because of an insufficient fix for CVE-2009-1339.

Published: 2010-09-07 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4898 is rated Moderate Risk (42.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.59%). 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-2009-4898

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 0.12% 0.59% +0.47%
2 2025-03-17 0.16% 0.12% -0.04%
3 2024-09-17 — 0.16% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4898

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-2009-4898

OS Trackers for CVE-2009-4898

vendor priority summary link
ubuntu medium CVE-2009-4898 medium priority: Ubuntu including 1 source packages (twiki), 9 status rows across 9 suites (dapper, hardy, jaunty, karmic, lucid, maverick, natty, oneiric, upstream): DNE 4, ignored 4, released 1. https://ubuntu.com/security/CVE-2009-4898

Affected software / configurations for CVE-2009-4898

Vendor Product Version Raw CPE
twiki twiki <= 4.3.1 cpe:2.3:a:twiki:twiki:*:*:*:*:*:*:*:*
twiki twiki 4.0.0 cpe:2.3:a:twiki:twiki:4.0.0:*:*:*:*:*:*:*
twiki twiki 4.0.1 cpe:2.3:a:twiki:twiki:4.0.1:*:*:*:*:*:*:*
twiki twiki 4.0.2 cpe:2.3:a:twiki:twiki:4.0.2:*:*:*:*:*:*:*
twiki twiki 4.0.3 cpe:2.3:a:twiki:twiki:4.0.3:*:*:*:*:*:*:*
twiki twiki 4.0.4 cpe:2.3:a:twiki:twiki:4.0.4:*:*:*:*:*:*:*
twiki twiki 4.0.5 cpe:2.3:a:twiki:twiki:4.0.5:*:*:*:*:*:*:*
twiki twiki 4.1.0 cpe:2.3:a:twiki:twiki:4.1.0:*:*:*:*:*:*:*
twiki twiki 4.1.1 cpe:2.3:a:twiki:twiki:4.1.1:*:*:*:*:*:*:*
twiki twiki 4.1.2 cpe:2.3:a:twiki:twiki:4.1.2:*:*:*:*:*:*:*
twiki twiki 4.2.0 cpe:2.3:a:twiki:twiki:4.2.0:*:*:*:*:*:*:*
twiki twiki 4.2.1 cpe:2.3:a:twiki:twiki:4.2.1:*:*:*:*:*:*:*
twiki twiki 4.2.2 cpe:2.3:a:twiki:twiki:4.2.2:*:*:*:*:*:*:*
twiki twiki 4.2.3 cpe:2.3:a:twiki:twiki:4.2.3:*:*:*:*:*:*:*
twiki twiki 4.2.4 cpe:2.3:a:twiki:twiki:4.2.4:*:*:*:*:*:*:*
twiki twiki 4.3.0 cpe:2.3:a:twiki:twiki:4.3.0:*:*:*:*:*:*:*

References for CVE-2009-4898

cvelogic Threat Intelligence