CVE-2009-3266
Opera before 10.01 does not properly restrict HTML in a (1) RSS or (2) Atom feed, which allows remote attackers to conduct cross-site scripting (XSS) attacks, and conduct cross-zone scripting attacks involving the Feed Subscription Page to read feeds or create feed subscriptions, via a crafted feed, related to the rendering of the application/rss+xml content type as "scripted content."
Key facts
- CVSS score
- 4.3 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:N- Weakness (CWE)
- CWE-79
- EPSS score
- 2.7% (86th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2009-3249)
- Published
- September 18, 2009
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2009-3249 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
- opera / opera browser
and 55 more…
References
- http://archives.neohapsis.com/archives/bugtraq/2009-10/0289.html
- http://secunia.com/advisories/37182(Vendor Advisory)
- http://securethoughts.com/2009/09/exploiting-chrome-and-operas-inbuilt-atomrss-reader-with-script-execution-and-more/(Exploit)
- http://securethoughts.com/2009/10/hijacking-operas-native-page-using-malicious-rss-payloads/
- http://www.opera.com/docs/changelogs/mac/1001/(Patch)
- http://www.opera.com/docs/changelogs/unix/1001/(Patch)
- http://www.opera.com/docs/changelogs/windows/1001/(Patch)
- http://www.opera.com/support/kb/view/939/(Vendor Advisory)
- http://www.osvdb.org/59358
- http://www.securityfocus.com/archive/1/506517/100/0/threaded
- http://www.securityfocus.com/bid/36418
- http://www.securityfocus.com/bid/36850
- http://www.vupen.com/english/advisories/2009/3073(Vendor Advisory)
- https://exchange.xforce.ibmcloud.com/vulnerabilities/54021
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6314
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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