Opera Mini for Android below 53.1 displays URL left-aligned in the address field. This allows a malicious attacker to craft a URL with a long domain name, e.g. www.safe.opera.com.attacker.com. With the URL being left-aligned, the user will only see the front part (e.g. www.safe.opera.com…) The exact amount depends on the phone screen size but the attacker can craft a number of different domains and target different phones. Starting with version 53.1 Opera Mini displays long URLs with the top-level domain label aligned to the right of the address field which mitigates the issue.
Max CVSS
5.3
EPSS Score
0.08%
Published
2021-01-11
Updated
2021-01-20
Opera Touch for iOS before version 2.4.5 is vulnerable to an address bar spoofing attack. The vulnerability allows a malicious page to trick the browser into showing an address of a different page. This may allow the malicious page to impersonate another page and trick a user into providing sensitive data.
Max CVSS
4.3
EPSS Score
0.08%
Published
2020-11-13
Updated
2020-11-30
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 from a third-party context.
Max CVSS
5.5
EPSS Score
0.04%
Published
2019-12-18
Updated
2020-01-07
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 numerical IP address or an alphabetic string, leading to a spoofed URL.
Max CVSS
4.3
EPSS Score
0.11%
Published
2020-03-12
Updated
2020-08-24
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
The HTTPS 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

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
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
The Opera Mobile application before 12.1 and Opera Mini application before 7.5 for Android do not properly implement the WebView class, which allows attackers to obtain sensitive information via a crafted application.
Max CVSS
4.3
EPSS Score
0.06%
Published
2012-12-26
Updated
2013-01-08
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
190 vulnerabilities found
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