In the WebRTC component in Opera 51.0.2830.55, after visiting a web site that attempts to gather complete client information (such as https://ip.voidsec.com), the browser can disclose a private IP address in a STUN request.
Max CVSS
4.3
EPSS Score
0.17%
Published
2018-03-28
Updated
2018-04-23
The HTTP/2 protocol does not consider the role of the TCP congestion window in providing information about content length, which makes it easier for remote attackers to obtain cleartext data by leveraging a web-browser configuration in which third-party cookies are sent, aka a "HEIST" attack.
Max CVSS
5.3
EPSS Score
0.51%
Published
2016-09-06
Updated
2017-02-19
Characters from languages are such as Arabic, Hebrew are displayed from RTL (Right To Left) order in Opera 37.0.2192.105088 for Android, due to mishandling of several unicode characters such as U+FE70, U+0622, U+0623 etc and how they are rendered combined with (first strong character) such as an IP address or alphabet could lead to a spoofed URL. It was noticed that by placing neutral characters such as "/", "?" in filepath causes the URL to be flipped and displayed from Right To Left. However, in order for the URL to be spoofed the URL must begin with an IP address followed by neutral characters as omnibox considers IP address to be combination of punctuation and numbers and since LTR (Left To Right) direction is not properly enforced, this causes the entire URL to be treated and rendered from RTL (Right To Left). However, it doesn't have be an IP address, what matters is that first strong character (generally, alphabetic character) in the URL must be an RTL character.
Max CVSS
6.1
EPSS Score
0.07%
Published
2017-01-26
Updated
2017-01-27
Opera Mini 13 and Opera Stable 36 allow remote attackers to spoof the displayed URL via a crafted HTML document, related to the about:blank URL.
Max CVSS
6.1
EPSS Score
0.16%
Published
2017-04-21
Updated
2022-04-06

CVE-2015-4000

Public exploit
The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server but not on a client, does not properly convey a DHE_EXPORT choice, which allows man-in-the-middle attackers to conduct cipher-downgrade attacks by rewriting a ClientHello with DHE replaced by DHE_EXPORT and then rewriting a ServerHello with DHE_EXPORT replaced by DHE, aka the "Logjam" issue.
Max CVSS
4.3
EPSS Score
97.46%
Published
2015-05-21
Updated
2023-02-09
Opera before 19 on Mac OS X allows user-assisted remote attackers to spoof the address bar via vectors involving a drag-and-drop operation.
Max CVSS
4.3
EPSS Score
0.11%
Published
2014-02-06
Updated
2014-02-07
The intent: URL implementation in Opera before 18 on Android allows attackers to read local files by leveraging an interaction error, as demonstrated by reading stored cookies.
Max CVSS
4.3
EPSS Score
0.21%
Published
2014-02-06
Updated
2017-08-29
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.
Max CVSS
4.3
EPSS Score
0.14%
Published
2013-09-13
Updated
2013-09-13
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.
Max CVSS
5.0
EPSS Score
0.14%
Published
2013-04-19
Updated
2013-04-22
Opera before 12.13 does not send CORS preflight requests in all required cases, which allows remote attackers to bypass a CSRF protection mechanism via a crafted web site that triggers a CORS request.
Max CVSS
6.8
EPSS Score
0.16%
Published
2013-02-08
Updated
2013-03-08
The TLS implementation in Opera before 12.13 does not properly consider timing side-channel attacks on a MAC check operation during the processing of malformed CBC padding, which allows remote attackers to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data for crafted packets, a related issue to CVE-2013-0169.
Max CVSS
4.0
EPSS Score
0.32%
Published
2013-02-08
Updated
2013-03-08
Opera before 12.12 on UNIX uses weak permissions for the profile directory, which allows local users to obtain sensitive information by reading a (1) cache file, (2) password file, or (3) configuration file, or (4) possibly gain privileges by modifying or overwriting a configuration file.
Max CVSS
4.6
EPSS Score
0.04%
Published
2013-01-02
Updated
2013-01-02
Opera before 12.12 allows remote attackers to spoof the address field via a high rate of HTTP requests.
Max CVSS
5.0
EPSS Score
0.14%
Published
2013-01-02
Updated
2013-01-02
Opera before 12.11 allows remote attackers to determine the existence of arbitrary local files via vectors involving web script in an error page.
Max CVSS
5.0
EPSS Score
0.31%
Published
2013-01-02
Updated
2015-10-08
Opera before 12.10 follows Internet shortcuts that are referenced by a (1) IMG element or (2) other inline element, which makes it easier for remote attackers to conduct phishing attacks via a crafted web site, as exploited in the wild in November 2012.
Max CVSS
4.3
EPSS Score
0.25%
Published
2013-01-02
Updated
2015-09-29
Opera before 12.10 does not properly handle incorrect size data in a WebP image, which allows remote attackers to obtain potentially sensitive information from process memory by using a crafted image as the fill pattern for a canvas.
Max CVSS
5.0
EPSS Score
0.14%
Published
2013-01-02
Updated
2013-01-02
Cross-site scripting (XSS) vulnerability in Opera before 12.10 allows remote attackers to inject arbitrary web script or HTML via crafted JavaScript code that overrides methods of unspecified native objects in documents that have different origins.
Max CVSS
4.3
EPSS Score
0.11%
Published
2013-01-02
Updated
2013-01-02
Cross-site scripting (XSS) vulnerability in Opera before 12.10 allows remote attackers to inject arbitrary web script or HTML via vectors involving an unspecified sequence of loading of documents and loading of data: URLs.
Max CVSS
4.3
EPSS Score
0.11%
Published
2013-01-02
Updated
2013-01-02
Opera before 12.10 does not properly implement the Cross-Origin Resource Sharing (CORS) specification, which allows remote attackers to bypass intended page-content restrictions via a crafted request.
Max CVSS
5.0
EPSS Score
0.11%
Published
2013-01-02
Updated
2013-01-02
The X.509 certificate-validation functionality in the https implementation in Opera before 12.10 allows remote attackers to trigger a false indication of successful revocation-status checking by causing a failure of a single checking service.
Max CVSS
5.0
EPSS Score
0.14%
Published
2013-01-02
Updated
2013-01-02
Opera before 11.67 and 12.x before 12.02 allows remote attackers to cause truncation of a dialog, and possibly trigger downloading and execution of arbitrary programs, via a crafted web site.
Max CVSS
5.0
EPSS Score
0.17%
Published
2013-01-02
Updated
2013-01-02
Opera before 12.01 allows remote attackers to cause a denial of service (application crash) via a crafted web site, as demonstrated by the Lenovo "Shop now" page.
Max CVSS
4.3
EPSS Score
0.29%
Published
2012-08-06
Updated
2012-08-07
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.
Max CVSS
4.3
EPSS Score
0.29%
Published
2012-08-06
Updated
2012-08-07
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.
Max CVSS
6.8
EPSS Score
0.75%
Published
2012-08-06
Updated
2012-08-07
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.
Max CVSS
4.3
EPSS Score
0.23%
Published
2012-08-06
Updated
2012-08-07
203 vulnerabilities found
1 2 3 4 5 6 7 8 9
This web site uses cookies for managing your session, storing preferences, website analytics and additional purposes described in our privacy policy.
By using this web site you are agreeing to CVEdetails.com terms of use!