How severe is CVE-2014-9509?

CVE-2014-9509 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2014-9509 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-9509?

CVE-2014-9509 primarily affects Typo3. In total, 118 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-9509?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2014-9509 published?

CVE-2014-9509 was published on 2015-01-04 and last updated on 2026-06-17.

CVE-2014-9509

CVE-2014-9509 is a high-severity vulnerability in Typo3 with a CVSS 2.0 base score of 7.5. 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-20.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Typo3
Published: 2015-01-04
Last modified: 2026-06-17

Description

The frontend rendering component in TYPO3 4.5.x before 4.5.39, 4.6.x through 6.2.x before 6.2.9, and 7.x before 7.0.2, when config.prefixLocalAnchors is set to all or cached, allows remote attackers to have an unspecified impact (possibly resource consumption) via a "Cache Poisoning" attack using a URL with arbitrary arguments, which triggers a reload of the page.

Frequently asked questions

What is CVE-2014-9509?: The frontend rendering component in TYPO3 4.5.x before 4.5.39, 4.6.x through 6.2.x before 6.2.9, and 7.x before 7.0.2, when config.prefixLocalAnchors is set to all or cached, allows remote attackers to have an unspecified impact (possibly resource consumption) via a "Cache Poisoning" attack using a URL with arbitrary arguments, which triggers a reload of the page.
How severe is CVE-2014-9509?: CVE-2014-9509 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2014-9509 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-9509?: CVE-2014-9509 primarily affects Typo3. In total, 118 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-9509?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2014-9509 published?: CVE-2014-9509 was published on 2015-01-04 and last updated on 2026-06-17.

References

http://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2014-003/

Affected products (118)

cpe:2.3:a:typo3:typo3:4.5.0:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.1:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.2:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.3:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.4:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.5:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.6:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.7:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.8:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.9:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.10:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.11:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.12:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.13:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.14:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.15:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.16:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.17:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.18:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.19:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.20:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.21:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.22:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.23:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.24:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.25:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.26:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.27:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.28:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.29:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.30:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.31:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.32:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.33:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.34:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.35:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.36:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.37:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.5.38:*:*:*:*:*:*:*
cpe:2.3:a:typo3:typo3:4.6.0:*:*:*:*:*:*:*

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