Opera 7.50 and earlier allows remote web sites to provide a "Shortcut Icon" (favicon) that is wider than expected, which could allow the web sites to spoof a trusted domain and facilitate phishing attacks using a wide icon and extra spaces.
Max CVSS
5.0
EPSS Score
0.39%
Published
2004-08-06
Updated
2022-02-28
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."
Max CVSS
5.0
EPSS Score
0.33%
Published
2004-09-16
Updated
2022-02-28
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.
Max CVSS
5.0
EPSS Score
0.43%
Published
2005-01-10
Updated
2022-02-28
Opera 7.54 and earlier uses kfmclient exec to handle unknown MIME types, which allows remote attackers to execute arbitrary code via a shortcut or launcher that contains an Exec entry.
Max CVSS
5.0
EPSS Score
4.52%
Published
2004-12-31
Updated
2022-02-28
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.
Max CVSS
5.0
EPSS Score
0.26%
Published
2004-12-31
Updated
2022-02-28
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.
Max CVSS
5.0
EPSS Score
0.48%
Published
2004-12-31
Updated
2022-02-28
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.
Max CVSS
5.0
EPSS Score
2.06%
Published
2004-12-31
Updated
2022-02-28
The International Domain Name (IDN) support in Opera 7.54 allows remote attackers to spoof domain names using punycode encoded domain names that are decoded in URLs and SSL certificates in a way that uses homograph characters from other character sets, which facilitates phishing attacks.
Max CVSS
5.0
EPSS Score
0.67%
Published
2005-05-02
Updated
2022-02-28
The International Domain Name (IDN) support in Epiphany allows remote attackers to spoof domain names using punycode encoded domain names that are decoded in URLs and SSL certificates in a way that uses homograph characters from other character sets, which facilitates phishing attacks.
Max CVSS
5.0
EPSS Score
0.30%
Published
2005-05-02
Updated
2022-02-28
Opera 7.54 and earlier does not properly validate base64 encoded binary data in a data: (RFC 2397) URL, which causes the URL to be obscured in a download dialog, which may allow remote attackers to trick users into executing arbitrary code.
Max CVSS
5.0
EPSS Score
1.00%
Published
2005-01-12
Updated
2022-02-28
Opera 8.01 allows remote attackers to cause a denial of service (CPU consumption) via a crafted JPEG image, as demonstrated using random.jpg.
Max CVSS
5.0
EPSS Score
0.16%
Published
2005-07-19
Updated
2022-02-28
Opera 8.01, when the "Arial Unicode MS" font (ARIALUNI.TTF) is installed, does not properly handle extended ASCII characters in the file download dialog box, which allows remote attackers to spoof file extensions and possibly trick users into executing arbitrary code.
Max CVSS
5.0
EPSS Score
1.70%
Published
2005-08-01
Updated
2022-02-28
A design error in Opera 8.01 and earlier allows user-assisted attackers to execute arbitrary code by overlaying a malicious new window above a file download dialog box, then tricking the user into double-clicking on the "Run" button, aka "link hijacking".
Max CVSS
5.1
EPSS Score
0.88%
Published
2005-08-01
Updated
2022-02-28
The mail client in Opera before 8.50 opens attached files from the user's cache directory without warning the user, which might allow remote attackers to inject arbitrary web script and spoof attachment filenames.
Max CVSS
5.0
EPSS Score
1.56%
Published
2005-09-21
Updated
2017-07-11
Unspecified "drag-and-drop vulnerability" in Opera Web Browser before 8.50 on Windows allows "unintentional file uploads."
Max CVSS
5.0
EPSS Score
0.20%
Published
2005-09-22
Updated
2022-02-28
Opera Web Browser 8.50 and 8.0 through 8.0.2 allows remote attackers to spoof the URL in the status bar via the title in an image in a link to a trusted site within a form to the malicious site.
Max CVSS
5.0
EPSS Score
0.14%
Published
2005-11-21
Updated
2022-02-28
Opera 8.50 allows remote attackers to cause a denial of service (crash) via a Java applet with a large string argument to the removeMember JNI method for the com.opera.JSObject class.
Max CVSS
5.0
EPSS Score
0.38%
Published
2005-12-01
Updated
2022-02-28
Opera before 8.51, when running on Windows with Input Method Editor (IME) installed, allows remote attackers to cause a denial of service (persistent application crash) by bookmarking a site with a long title.
Max CVSS
5.0
EPSS Score
1.88%
Published
2005-12-13
Updated
2022-02-28
Opera 8.02 and earlier allows remote attackers to cause a denial of service (client crash) via (1) a crafted HTML file with a "content: url(0);" style attribute, a "bodyA" tag, a long string, and a "u" tag with a long attribute, as demonstrated by opera.html; and (2) a BGSOUND element with a "margin:-99;" STYLE attribute.
Max CVSS
5.0
EPSS Score
1.67%
Published
2005-12-31
Updated
2022-02-28
Integer signedness error in Opera before 8.54 allows remote attackers to execute arbitrary code via long values in a stylesheet attribute, which pass a length check. NOTE: a sign extension problem makes the attack easier with shorter strings.
Max CVSS
5.1
EPSS Score
9.46%
Published
2006-04-19
Updated
2018-10-18
Opera 9 allows remote attackers to cause a denial of service (crash) via an A tag with an href attribute with a URL containing a long hostname, which triggers an out-of-bounds operation.
Max CVSS
5.0
EPSS Score
2.95%
Published
2006-06-23
Updated
2022-02-28
Opera before 9.0 does not reset the SSL security bar after displaying a download dialog from an SSL-enabled website, which allows remote attackers to spoof a trusted SSL certificate from an untrusted website and facilitates phishing attacks.
Max CVSS
5.0
EPSS Score
1.69%
Published
2006-06-30
Updated
2022-02-28
Opera 9 allows remote attackers to cause a denial of service (crash) via a crafted web page that triggers an out-of-bounds memory access, related to an iframe and JavaScript that accesses certain style sheets properties.
Max CVSS
5.0
EPSS Score
1.63%
Published
2006-07-06
Updated
2022-02-28
The CSS functionality in Opera 9 on Windows XP SP2 allows remote attackers to cause a denial of service (crash) by setting the background property of a DHTML element to a long http or https URL, which triggers memory corruption.
Max CVSS
5.0
EPSS Score
0.71%
Published
2006-07-31
Updated
2022-02-28
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).
Max CVSS
5.1
EPSS Score
29.94%
Published
2006-10-17
Updated
2017-07-20
107 vulnerabilities found
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