Google Web Toolkit (GWT) XSS

2013.08.05
Credit: David Jorm
Risk: Low
Local: No
Remote: Yes
CWE: CWE-79


CVSS Base Score: 4.3/10
Impact Subscore: 2.9/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: None
Integrity impact: Partial
Availability impact: None

I note that with the release of Google Web Toolkit (GWT) 2.5.1, a security flaw has been resolved: http://www.gwtproject.org/release-notes.html#Release_Notes_2_5_1_RC1 ("Security Fixes") The release notes state: Fixed an XSS vulnerability in html files used by GWTTestCase (patch). These files will only be included in a GWT app if it depends on the JUnit module. Despite the fix, this is not recommended. The patch is here: https://code.google.com/p/google-web-toolkit/source/detail?r=11385 I have reproduced this flaw and can confirm it is reflected XSS. I have previously contacted security () google asking for CVE IDs for GWT flaws, but never received a response. Please assign a CVE ID to this flaw.

References:

https://code.google.com/p/google-web-toolkit/source/detail?r=11385
http://www.gwtproject.org/release-notes.html#Release_Notes_2_5_1_RC1


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