The Spellcheck API implementation in Google Chrome before 43.0.2357.65 does not use an HTTPS session for downloading a Hunspell dictionary, which allows man-in-the-middle attackers to deliver incorrect spelling suggestions or possibly have unspecified other impact via a crafted file.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1263
Reference (s):
- BID:74723
- URL: http://www.securityfocus.com/bid/74723
- http://googlechromereleases.blogspot.com/2015/05/stable-channel-update_19.html
- https://code.google.com/p/chromium/issues/detail?id=479162
- https://codereview.chromium.org/1056103005