How severe is CVE-2009-4898?

CVE-2009-4898 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2009-4898 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-4898?

CVE-2009-4898 primarily affects Twiki. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-4898?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-4898 published?

CVE-2009-4898 was published on 2010-09-07 and last updated on 2026-06-16.

CVE-2009-4898

CVE-2009-4898 is a medium-severity vulnerability in Twiki with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-352.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Twiki
Published: 2010-09-07
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2009-4898?: CVE-2009-4898 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2009-4898 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-4898?: CVE-2009-4898 primarily affects Twiki. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-4898?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-4898 published?: CVE-2009-4898 was published on 2010-09-07 and last updated on 2026-06-16.

References

Affected products (16)

cpe:2.3:a:twiki:twiki:*:*:*:*:*:*:*:*
cpe:2.3:a:twiki:twiki:4.0.0:*:*:*:*:*:*:*
cpe:2.3:a:twiki:twiki:4.0.1:*:*:*:*:*:*:*
cpe:2.3:a:twiki:twiki:4.0.2:*:*:*:*:*:*:*
cpe:2.3:a:twiki:twiki:4.0.3:*:*:*:*:*:*:*
cpe:2.3:a:twiki:twiki:4.0.4:*:*:*:*:*:*:*
cpe:2.3:a:twiki:twiki:4.0.5:*:*:*:*:*:*:*
cpe:2.3:a:twiki:twiki:4.1.0:*:*:*:*:*:*:*
cpe:2.3:a:twiki:twiki:4.1.1:*:*:*:*:*:*:*
cpe:2.3:a:twiki:twiki:4.1.2:*:*:*:*:*:*:*
cpe:2.3:a:twiki:twiki:4.2.0:*:*:*:*:*:*:*
cpe:2.3:a:twiki:twiki:4.2.1:*:*:*:*:*:*:*
cpe:2.3:a:twiki:twiki:4.2.2:*:*:*:*:*:*:*
cpe:2.3:a:twiki:twiki:4.2.3:*:*:*:*:*:*:*
cpe:2.3:a:twiki:twiki:4.2.4:*:*:*:*:*:*:*
cpe:2.3:a:twiki:twiki:4.3.0:*:*:*:*:*:*:*

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