CVE-2011-3656

MEDIUM

Firefox < 3.6.24 and 4.x-7 - Cross-Site Scripting via HTTP 0.9 Error Handling

Title source: llm
STIX 2.1

Description

Cross-site scripting (XSS) vulnerability in Mozilla Firefox before 3.6.24 and 4.x through 7 allows remote attackers to inject arbitrary web script or HTML via vectors involving HTTP 0.9 errors, non-default ports, and content-sniffing.

References (1)

Core 1
Core References
Issue Tracking, Vendor Advisory x_refsource_misc
https://bugzilla.mozilla.org/show_bug.cgi?id=667907

Scores

CVSS v3 6.1
EPSS 0.0076
EPSS Percentile 51.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (1)
mozilla/firefox < 3.6.24
Published Jun 02, 2021
Tracked Since Feb 18, 2026