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5.8

Opera 9.21 can hide real address, enabling phishing

CVE-2007-3142 · published 19 years ago
Summary

The web browser Opera version 9.21 may display only part of a long website name, cutting it off after 34 characters. This makes it possible for attackers to make a fake site look like a legitimate one and trick users into entering their login details. Update the browser to a newer version or apply any available patches to stop this from happening.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
opera opera_browser 9.21
cpe:2.3:a:opera:opera_browser:9.21:*:*:*:*:*:*:*
Original advisory text
Visual truncation vulnerability in Opera 9.21 allows remote attackers to spoof the address bar and possibly conduct phishing attacks via a long hostname, which is truncated after 34 characters, as ...
Visual truncation vulnerability in Opera 9.21 allows remote attackers to spoof the address bar and possibly conduct phishing attacks via a long hostname, which is truncated after 34 characters, as demonstrated by a phishing attack using HTTP Basic Authentication.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
5.8 Medium
Exploitation
1% chance of attack within 30 days
Timeline
Published11 Jun 2007
Updated31 Oct 2026
First seen29 Sep 2026
Sources
CVE-2007-3142 · NVD
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