CVE-2009-4074 json
The XSS Filter in Microsoft Internet Explorer 8 allows remote attackers to leverage the "response-changing mechanism" to conduct cross-site…
published 2009-11-25 16 y ago modified 2026-06-16 4 mo ago also EUVD-2009-4045
- cvss
- 4.3
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 14.8%
- EPSS 14.8% chance of exploitation in 30 days, percentile 96%
- public exploits
- 0
- none known
Summary
The XSS Filter in Microsoft Internet Explorer 8 allows remote attackers to leverage the "response-changing mechanism" to conduct cross-site scripting (XSS) attacks against web sites that have no inherent XSS vulnerabilities, related to the details of output encoding and improper modification of an HTML attribute, aka "XSS Filter Script Handling Vulnerability."
Exploit prediction
14.84% chance of exploitation in the next 30 days, higher than 96% 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 |
References
-
docs.microsoft.com
/en-us/security-updates/securitybulletins/2010/ms10-002
vendor-advisory
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7715
vdb-entry, signature
- theregister.co.uk /2009/11/20/internet_explorer_security_flaw/
- hackademix.net /2009/11/21/ies-xss-filter-creates-xss-vulnerabilities/
- owasp.org /images/5/50/OWASP-Italy_Day_IV_Maone.pdf
-
securityfocus.com
/bid/37135
vdb-entry
Sources
- CVE List CVE-2009-4074
- NVD CVE-2009-4074
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.