Track vulnerabilities like this one. Sign up free to get alerted when software you use is affected.
4.3

Opera before 11.51 can display insecure sites as trusted

CVE-2011-3388 · published 15 years ago
Summary

Older versions of the Opera web browser can be fooled into showing the safety lock or trust icons for a website that is not actually secure. This may cause visitors to think a malicious page is safe and share sensitive information. Upgrade Opera to version 11.51 or later, or apply the available security update, to stop this deception.

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 <= 11.50
5.0
5.02
5.10
5.11
5.12
6.0
6.1
6.01
6.02
6.03
6.04
65 more version ranges
cpe:2.3:a:opera:opera_browser:*:*:*:*:*:*:*:*
Original advisory text
Opera before 11.51 allows remote attackers to cause an insecure site to appear secure or trusted via unspecified actions related to Extended Validation and loading content from trusted sources in a...
Opera before 11.51 allows remote attackers to cause an insecure site to appear secure or trusted via unspecified actions related to Extended Validation and loading content from trusted sources in an unspecified sequence that causes the address field and page information dialog to contain security information based on the trusted site, instead of the insecure site.
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
4.3 Medium
Exploitation
2% chance of attack within 30 days
Type
CWE-200Information Exposure
Timeline
Published6 Sep 2011
Updated29 Oct 2026
First seen29 Sep 2026
Sources
CVE-2011-3388 · NVD
Track software like this
Free during beta