Vulnerabilities (CVE)

Filtered by vendor Opera Subscribe
Filtered by product Opera Browser
Total 284 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2009-2070 1 Opera 1 Opera Browser 2025-04-09 6.8 MEDIUM N/A
Opera displays a cached certificate for a (1) 4xx or (2) 5xx CONNECT response page returned by a proxy server, which allows man-in-the-middle attackers to spoof an arbitrary https site by letting a browser obtain a valid certificate from this site during one request, and then sending the browser a crafted 502 response page upon a subsequent request.
CVE-2008-5683 1 Opera 1 Opera Browser 2025-04-09 7.8 HIGH N/A
Unspecified vulnerability in Opera before 9.63 allows remote attackers to "reveal random data" via unknown vectors.
CVE-2008-4697 1 Opera 1 Opera Browser 2025-04-09 4.3 MEDIUM N/A
The Fast Forward feature in Opera before 9.61, when a page is located in a frame, executes a javascript: URL in the context of the outermost page instead of the page that contains this URL, which allows remote attackers to conduct cross-site scripting (XSS) attacks.
CVE-2008-7245 1 Opera 1 Opera Browser 2025-04-09 5.0 MEDIUM N/A
Opera 9.52 and earlier allows remote attackers to cause a denial of service (unusable browser) by calling the window.print function in a loop, aka a "printing DoS attack," possibly a related issue to CVE-2009-0821.
CVE-2008-2715 1 Opera 1 Opera Browser 2025-04-09 5.0 MEDIUM N/A
Unspecified vulnerability in Opera before 9.5 allows remote attackers to read cross-domain images via HTML CANVAS elements that use the images as patterns.
CVE-2008-4197 5 Freebsd, Linux, Microsoft and 2 more 5 Freebsd, Linux Kernel, Windows and 2 more 2025-04-09 9.3 HIGH 8.8 HIGH
Opera before 9.52 on Windows, Linux, FreeBSD, and Solaris, when processing custom shortcut and menu commands, can produce argument strings that contain uninitialized memory, which might allow user-assisted remote attackers to execute arbitrary code or conduct other attacks via vectors related to activation of a shortcut.
CVE-2008-3078 1 Opera 1 Opera Browser 2025-04-09 7.8 HIGH N/A
Opera before 9.51 does not properly manage memory within functions supporting the CANVAS element, which allows remote attackers to read uninitialized memory contents by using JavaScript to read a canvas image.
CVE-2006-4819 1 Opera 1 Opera Browser 2025-04-09 5.1 MEDIUM N/A
Heap-based buffer overflow in Opera 9.0 and 9.01 allows remote attackers to execute arbitrary code via a long URL in a tag (long link address).
CVE-2009-2067 1 Opera 1 Opera Browser 2025-04-09 6.8 MEDIUM N/A
Opera detects http content in https web pages only when the top-level frame uses https, which allows man-in-the-middle attackers to execute arbitrary web script, in an https site's context, by modifying an http page to include an https iframe that references a script file on an http site, related to "HTTP-Intended-but-HTTPS-Loadable (HPIHSL) pages."
CVE-2009-4072 1 Opera 1 Opera Browser 2025-04-09 10.0 HIGH N/A
Unspecified vulnerability in Opera before 10.10 has unknown impact and attack vectors, related to a "moderately severe issue."
CVE-2007-2809 1 Opera 1 Opera Browser 2025-04-09 9.3 HIGH N/A
Buffer overflow in the transfer manager in Opera before 9.21 for Windows allows user-assisted remote attackers to execute arbitrary code via a crafted torrent file. NOTE: due to the lack of details, it is not clear if this is the same issue as CVE-2007-2274.
CVE-2008-4292 1 Opera 1 Opera Browser 2025-04-09 10.0 HIGH N/A
Opera before 9.52 does not check the CRL override upon encountering a certificate that lacks a CRL, which has unknown impact and attack vectors. NOTE: it is not clear whether this is a vulnerability, but the vendor included it in a security section of the advisory.
CVE-2008-4200 1 Opera 1 Opera Browser 2025-04-09 6.4 MEDIUM N/A
Opera before 9.52 does not ensure that the address field of a news feed represents the feed's actual URL, which allows remote attackers to change this field to display the URL of a page containing web script controlled by the attacker.
CVE-2006-6970 1 Opera 1 Opera Browser 2025-04-09 5.0 MEDIUM N/A
Opera 9.10 Final allows remote attackers to bypass the Fraud Protection mechanism by adding certain characters to the end of a domain name, as demonstrated by the "." and "/" characters, which is not caught by the blacklist filter.
CVE-2009-2059 1 Opera 1 Opera Browser 2025-04-09 6.8 MEDIUM N/A
Opera, possibly before 9.25, uses the HTTP Host header to determine the context of a document provided in a (1) 4xx or (2) 5xx CONNECT response from a proxy server, which allows man-in-the-middle attackers to execute arbitrary web script by modifying this CONNECT response, aka an "SSL tampering" attack.
CVE-2008-1081 1 Opera 1 Opera Browser 2025-04-09 6.8 MEDIUM N/A
Opera before 9.26 allows user-assisted remote attackers to execute arbitrary script via images that contain custom comments, which are treated as script when the user displays the image properties.
CVE-2007-6522 1 Opera 1 Opera Browser 2025-04-09 4.3 MEDIUM N/A
The rich text editing functionality in Opera before 9.25 allows remote attackers to conduct cross-domain scripting attacks by using designMode to modify contents of pages in other domains.
CVE-2009-3831 2 Microsoft, Opera 2 Windows, Opera Browser 2025-04-09 9.3 HIGH N/A
Opera before 10.01 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted domain name.
CVE-2008-5681 1 Opera 1 Opera Browser 2025-04-09 4.3 MEDIUM N/A
Opera before 9.63 does not block unspecified "scripted URLs" during the feed preview, which allows remote attackers to read existing subscriptions and force subscriptions to arbitrary feed URLs.
CVE-2009-2063 1 Opera 1 Opera Browser 2025-04-09 6.8 MEDIUM N/A
Opera, possibly before 9.25, processes a 3xx HTTP CONNECT response before a successful SSL handshake, which allows man-in-the-middle attackers to execute arbitrary web script, in an https site's context, by modifying this CONNECT response to specify a 302 redirect to an arbitrary https web site.