Skip to content
Fencer Vulns
medium 4.3

CVE-2009-3636 json

Typo3 API Install Tool vulnerable to Cross-site Scripting

published 2009-11-02 17 y ago modified 2026-06-16 4 mo ago also GHSA-c73w-4rcj-2622 , EUVD-2022-3521

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.0%
EPSS 2.0% chance of exploitation in 30 days, percentile 80%
public exploits
0
none known

Summary

Cross-site scripting (XSS) vulnerability in the Install Tool subcomponent in TYPO3 4.0.13 and earlier, 4.1.x before 4.1.13, 4.2.x before 4.2.10, and 4.3.x before 4.3beta2 allows remote attackers to inject arbitrary web script or HTML via unspecified parameters.

Patch / fix

  • packagist typo3/cms-install 4.1.13, 4.2.10, 4.3beta2

Exploit prediction

1.96% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected packages

ecosystem package affected fixed in
packagist typo3/cms-install
<=4.0.13
>=4.1.0, <4.1.13
>=4.2.0, <4.2.10
>=4.3alpha1, <4.3beta2
4.1.13
4.2.10
4.3beta2

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.