CVE-2012-3556 Cross-site scripting in n/a
A vulnerability in Opera allows attackers to execute arbitrary code or perform XSS via crafted websites exploiting pop-up restrictions during double-clicks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2012-3556?
CVE-2012-3556 is a critical cross-site scripting vulnerability in Opera Opera Browser, published on 14 Jun 2012. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-20
Which versions are affected by CVE-2012-3556?
It affects 1 product.
Products include Opera Opera Browser.
How do I fix CVE-2012-3556?
No fix has been published for CVE-2012-3556 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2012-3556 being exploited?
There is no known exploitation of CVE-2012-3556 in the wild and no public exploit code.
Other vulnerabilities in Opera Opera Browser
- CVE-2013-3211 Unspecified vulnerability in Opera before 12.15 has unknown impact and attack vectors, related to a "moderately severe issue."
- CVE-2012-4145 Other in n/a
- CVE-2012-3559 Other in n/a
- CVE-2012-3561 Memory corruption in n/a
- CVE-2011-4683 Unspecified vulnerability in Opera before 11.60 has unknown impact and attack vectors, related to a "moderately severe issue."
Sources
Also known as GHSA-cv79-6mrh-257r.