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Mozilla Foundation Security Advisory 2006-72
Title: XSS by setting img.src to javascript: URI
Impact: High
Announced: December 19, 2006
Reporter: moz_bug_r_a4
Products: Firefox, Thunderbird, SeaMonkey
Fixed in: Firefox 2.0.0.1
Firefox 1.5.0.9
Thunderbird 1.5.0.9
SeaMonkey 1.0.7
Description
moz_bug_r_a4 reported that the src attribute of an IMG
element loaded in a frame could be changed to a javascript: URI that was able
to bypass the protections against cross-site script (XSS) injection.
The injected script could steal credentials and financial data, or perform
destructive actions on behalf of a logged-in user.
Workaround
Disable JavaScript until you can upgrade to a fixed version.
References
Exploit details withheld until after the active update period.