CVE-2010-1310

Opera 10.50 allows remote attackers to obtain sensitive information via crafted XSLT constructs, which cause Opera to return cached contents of other pages...

CVE-2012-3560

Opera before 11.65 does not ensure that the address field corresponds to the displayed web page during blocked navigation, which makes it easier for remote attackers to conduct spoofing attacks by detecting and preventing attempts to load a different web page...

CVE-2012-3558

Opera before 11.65 does not ensure that the address field corresponds to the displayed web page during unusually timed changes to this field, which makes it easier for user-assisted remote attackers to conduct spoofing attacks via vectors involving navigation, reloads, and redirects...

CVE-2012-4143

Opera before 12.01 on Windows and UNIX, and before 11.66 and 12.x before 12.01 on Mac OS X, allows user-assisted remote attackers to trick users into downloading and executing arbitrary files via a small window for the download dialog, a different vulnerability than CVE-2012-1924...

CVE-2012-4010

Opera before 11.60 allows remote attackers to spoof the address bar via unspecified homograph characters, a different vulnerability than CVE-2010-2660...

CVE-2012-4144

Opera before 12.01 on Windows and UNIX, and before 11.66 and 12.x before 12.01 on Mac OS X, does not properly escape characters in DOM elements, which makes it easier for remote attackers to bypass cross-site scripting XSS protection mechanisms via a crafted HTML document...

CVE-2012-4142

Opera before 12.01 on Windows and UNIX, and before 11.66 and 12.x before 12.01 on Mac OS X, ignores some characters in HTML documents in unspecified circumstances, which makes it easier for remote attackers to conduct cross-site scripting XSS attacks via a crafted document...

CVE-2013-3211

Unspecified vulnerability in Opera before 12.15 has unknown impact and attack vectors, related to a "moderately severe issue."...

CVE-2013-3210

Opera before 12.15 does not properly block top-level domains in Set-Cookie headers, which allows remote attackers to obtain sensitive information by leveraging control of a different web site in the same top-level domain...

CVE-2013-4705

Cross-site scripting XSS vulnerability in Opera before 15.00 allows remote attackers to inject arbitrary web script or HTML by leveraging UTF-8 encoding...

CVE-2019-12278

Opera through 53 on Android allows Address Bar Spoofing. Characters from several languages are displayed in Right-to-Left order, due to mishandling of several Unicode characters. The rendering mechanism, in conjunction with the "first strong character" concept, may improperly operate on a numeric...

CVE-2019-19788

Opera for Android before 54.0.2669.49432 is vulnerable to a sandboxed cross-origin iframe bypass attack. By using a service working inside a sandboxed iframe it is possible to bypass the normal sandboxing attributes. This allows an attacker to make forced redirections without any user interaction...

CVE-2011-2638

Unspecified vulnerability in Opera before 11.10 allows remote attackers to cause a denial of service application crash via unknown content on a web page, as demonstrated by games on zylom.com...

CVE-2011-2627

Unspecified vulnerability in the DOM implementation in Opera before 11.50 allows remote attackers to cause a denial of service application crash via unknown content on a web page, as demonstrated by live.com...

CVE-2011-2615

Unspecified vulnerability in Opera before 11.50 allows remote attackers to cause a denial of service application hang via unknown content on a web page, as demonstrated by domiteca.com...

CVE-2011-4690

Opera 11.60 and earlier does not prevent capture of data about the times of Same Origin Policy violations during IFRAME loading attempts, which makes it easier for remote attackers to determine whether a document exists in the browser cache via crafted JavaScript code...

CVE-2011-4686

Unspecified vulnerability in the Web Workers implementation in Opera before 11.60 allows remote attackers to cause a denial of service application crash via unknown vectors...

CVE-2011-4683

Unspecified vulnerability in Opera before 11.60 has unknown impact and attack vectors, related to a "moderately severe issue."...

CVE-2012-6471

Opera before 12.12 allows remote attackers to spoof the address field via a high rate of HTTP requests...

CVE-2011-4684

Opera before 11.60 does not properly handle certificate revocation, which has unspecified impact and remote attack vectors related to "corner cases."...