Sage vulnerable to arbitrary script execution


Sage is vulnerable to arbitrary script execution.

Note that this vulnerability is different from JVN#30221194.

Sage is an addon for Mozilla Firefox that adds an RSS/Atom feed reader. Sage is vulnerable to arbitrary script execution due to the improper processing during HTML page output based on feed information.
CVSS Severity (What is CVSS?)

Base Metrics: 5.8 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: None

Affected Products

  • Sage versions prior to 1.4.6


An arbitrary script embedded in an RSS/Atom feed may be executed on the user's Mozilla Firefox.

[Update the software]
Update to the latest version according to the information provided by the developer.

[Apply a workaround]
Until an update can be applied, the workaround below may reduce the impact of this vulnerability:

* Uncheck the option for "Read feed into contents area" in Sage
Vendor Information

mozilla.org contributors
CWE (What is CWE?)

  1. Cross-site Scripting(CWE-79) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2009-4102

  1. JVN : JVN#99203127
  2. National Vulnerability Database (NVD) : CVE-2009-4102
  3. Secunia Advisory : SA37466
  4. SecurityFocus : 37120
  5. ISS X-Force Database : 54396
Revision History

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