Vulnerability Report

CVE-2012-3556

Title: Opera Opera Browser RCE

XSS

Proof Of Concept

No public PoC currently indexed for CVE-2012-3556.

CWE Category CWE-20

Published Date Jun 14, 2012

Modified Date Apr 29, 2026

Exploit Status Not Found

Score 9.3 CVSS v2.0

Exploit Probability (EPSS)

2.35%

Vulnerability Summary

CVE-2012-3556: Opera before 11.65 does not properly restrict the opening of a pop-up window in response to the first click of a double-click action, which makes it easier for user-assisted remote attackers to conduct cross-site scripting (XSS) attacks or execute arbitrary code via a crafted web site.

Impacted Vendors

opera 1

Reference Links

http://www.opera.com/docs/changelogs/mac/1165/ http://www.opera.com/docs/changelogs/mac/1200/ http://www.opera.com/docs/changelogs/unix/1200/ http://www.opera.com/docs/changelogs/windows/1200/ http://www.opera.com/support/kb/view/1020/ http://www.opera.com/docs/changelogs/mac/1165/ http://www.opera.com/docs/changelogs/mac/1200/ http://www.opera.com/docs/changelogs/unix/1200/ http://www.opera.com/docs/changelogs/windows/1200/ http://www.opera.com/support/kb/view/1020/

CVSS v2.0

Source Entity [email protected]

Severity HIGH

9.3

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:M/Au:N/C:C/I:C/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2012-3556 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

April 29, 2026 MODIFIED

Vulnerability data updated via NVD.

April 11, 2025 MODIFIED

Vulnerability data or affected products updated.

June 14, 2012 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A

Complexity N/A

Privileges N/A

Interaction NONE

CVSS Vector String


                                    AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected Stack

No specific products linked.