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CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 1

31 Dec 2004 — The Javascript engine in Opera 7.23 allows remote attackers to cause a denial of service (crash) by creating a new Array object with a large size value, then writing into that array. • http://marc.info/?l=bugtraq&m=107936810909082&w=2 •

CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 1

31 Dec 2004 — Opera 7.54 and earlier does not properly limit an applet's access to internal Java packages from Sun, which allows remote attackers to gain sensitive information, such as user names and the installation directory. • http://lists.grok.org.uk/pipermail/full-disclosure/2004-November/029044.html • CWE-668: Exposure of Resource to Wrong Sphere •

CVSS: 7.5EPSS: 1%CPEs: 1EXPL: 0

31 Dec 2004 — Opera 7.54 and earlier allows remote attackers to spoof file types in the download dialog via dots and non-breaking spaces (ASCII character code 160) in the (1) Content-Disposition or (2) Content-Type headers. • http://secunia.com/advisories/12981 •

CVSS: 9.1EPSS: 0%CPEs: 1EXPL: 1

31 Dec 2004 — Opera before 7.54 allows remote attackers to modify properties and methods of the location object and execute Javascript to read arbitrary files from the client's local filesystem or display a false URL to the user. • http://archives.neohapsis.com/archives/fulldisclosure/2004-08/0131.html • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') •

CVSS: 3.1EPSS: 1%CPEs: 1EXPL: 4

31 Dec 2004 — A race condition in Opera web browser 7.53 Build 3850 causes Opera to fill in the address bar before the page has been loaded, which allows remote attackers to spoof the URL in the address bar via the window.open and location.replace HTML parameters, which facilitates phishing attacks. • https://www.exploit-db.com/exploits/24325 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •

CVSS: 5.0EPSS: 0%CPEs: 1EXPL: 0

31 Dec 2004 — Opera Browser 7.23, and other versions before 7.50, updates the address bar as soon as the user clicks a link, which allows remote attackers to redirect to other sites via the onUnload attribute. • http://secunia.com/advisories/11532 • CWE-601: URL Redirection to Untrusted Site ('Open Redirect') •

CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 1

15 Dec 2004 — Opera 7.54 allows remote attackers to cause a denial of service (application crash from memory exhaustion), as demonstrated using Javascript code that continuously creates nested arrays and then sorts the newly created arrays. • http://marc.info/?l=full-disclosure&m=110141347502530&w=2 • CWE-400: Uncontrolled Resource Consumption •

CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0

10 Dec 2004 — Opera 7.x up to 7.54, and possibly other versions, allows remote attackers to spoof arbitrary web sites by injecting content from one window into a target window whose name is known but resides in a different domain, as demonstrated using a pop-up window on a trusted web site, aka the "window injection" vulnerability. • http://secunia.com/advisories/13253 • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') •

CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 1

18 Oct 2004 — Opera allows remote attackers to cause a denial of service (invalid memory reference and application crash) via a web page or HTML email that contains a TBODY tag with a large COL SPAN value, as demonstrated by mangleme. • http://lcamtuf.coredump.cx/mangleme/gallery •

CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0

16 Sep 2004 — Opera does not prevent cookies that are sent over an insecure channel (HTTP) from also being sent over a secure channel (HTTPS/SSL) in the same domain, which could allow remote attackers to steal cookies and conduct unauthorized activities, aka "Cross Security Boundary Cookie Injection." • http://securityfocus.com/archive/1/375407 • CWE-669: Incorrect Resource Transfer Between Spheres •