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    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."

    Published:Sep 18, 2009
    Last Modified:Apr 23, 2026
    EPS:Sep 18, 2009
    EPSS Score:0.00795
    CVSS Score:4.3

    Affected Products

    Vendor
    Opera
    Product
    Opera Browser

    Exploits

    http://securethoughts.com/2009/09/exploiting-chrome-and-operas-inbuilt-atomrss-reader-with-script-execution-and-more/http://securethoughts.com/2009/09/exploiting-chrome-and-operas-inbuilt-atomrss-reader-with-script-execution-and-more/

    Related CVEs

    CVE-2018-18913 (CVSS 7.8) — Opera before 57.0.3098.106 is vulnerable to a DLL Search Order hijacking attack where an attacker can send a Z…
    CVE-2018-6608 (CVSS 4.3) — In the WebRTC component in Opera 51.0.2830.55, after visiting a web site that attempts to gather complete clie…
    CVE-2016-4075 (CVSS 6.1) — Opera Mini 13 and Opera Stable 36 allow remote attackers to spoof the displayed URL via a crafted HTML documen…
    CVE-2016-6908 (CVSS 6.1) — Characters from languages are such as Arabic, Hebrew are displayed from RTL (Right To Left) order in Opera 37.…
    CVE-2015-8960 (CVSS 8.1) — The TLS protocol 1.2 and earlier supports the rsa_fixed_dh, dss_fixed_dh, rsa_fixed_ecdh, and ecdsa_fixed_ecdh…
    CVE-2016-7153 (CVSS 5.3) — The HTTP/2 protocol does not consider the role of the TCP congestion window in providing information about con…
    CVE-2015-4000 (CVSS 3.7) — The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server but not on a client, do…
    CVE-2014-1870 (CVSS 4.3) — Opera before 19 on Mac OS X allows user-assisted remote attackers to spoof the address bar via vectors involvi…
    CVE-2014-0815 (CVSS 4.3) — The intent: URL implementation in Opera before 18 on Android allows attackers to read local files by leveragin…
    CVE-2013-4705 (CVSS 4.3) — Cross-site scripting (XSS) vulnerability in Opera before 15.00 allows remote attackers to inject arbitrary web…

    References

    http://archives.neohapsis.com/archives/bugtraq/2009-10/0289.html
    http://secunia.com/advisories/37182
    http://securethoughts.com/2009/09/exploiting-chrome-and-operas-inbuilt-atomrss-reader-with-script-execution-and-more/
    http://securethoughts.com/2009/10/hijacking-operas-native-page-using-malicious-rss-payloads/
    http://www.opera.com/docs/changelogs/mac/1001/
    http://www.opera.com/docs/changelogs/unix/1001/
    http://www.opera.com/docs/changelogs/windows/1001/
    http://www.opera.com/support/kb/view/939/
    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
    https://exchange.xforce.ibmcloud.com/vulnerabilities/54021
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6314
    http://archives.neohapsis.com/archives/bugtraq/2009-10/0289.html
    http://secunia.com/advisories/37182
    http://securethoughts.com/2009/09/exploiting-chrome-and-operas-inbuilt-atomrss-reader-with-script-execution-and-more/
    http://securethoughts.com/2009/10/hijacking-operas-native-page-using-malicious-rss-payloads/
    http://www.opera.com/docs/changelogs/mac/1001/
    http://www.opera.com/docs/changelogs/unix/1001/
    http://www.opera.com/docs/changelogs/windows/1001/
    http://www.opera.com/support/kb/view/939/
    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
    https://exchange.xforce.ibmcloud.com/vulnerabilities/54021
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6314

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High