Opera < 11.01 Multiple Vulnerabilities

High Nessus Network Monitor Plugin ID 5747


The remote host has a web browser that is vulnerable to multiple attack vectors.


The remote host is running the Opera web browser.

Versions of Opera earlier than 11.01 are potentially affected by multiple vulnerabilities :

- When certain large form inputs appear on a web page, they can lead to memory corruption which could be used to execute arbitrary code. (982)

- It is possible to bypass restrictions on 'opera:' URLs to launch clickjacking attacks. (983)

- Certain types of HTTP responses and redirections can cause Opera to mistakenly give elevated privileges to remote web pages. (984)

- When using 'Delete Private Data' and selecting the option to 'Clear all email account passwords', the passwords are not deleted immediately and continue to be available until the browser is restarted. (986)

- In certain cases, the wrong executable is used to display a downloaded file in its folder. (985)


Upgrade to Opera 11.01 or later.

See Also


Plugin Details

Severity: High

ID: 5747

Family: Web Clients

Published: 2011/01/27

Updated: 2019/03/06

Dependencies: 1735, 8314

Nessus ID: 51774

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 9.3

Temporal Score: 7.7

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:F/RL:OF/RC:C

CVSS v3.0

Base Score: 8.1

Temporal Score: 7.5

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:opera:opera_browser

Patch Publication Date: 2011/01/27

Vulnerability Publication Date: 2011/01/27

Reference Information

CVE: CVE-2011-0450, CVE-2011-0681, CVE-2011-0682, CVE-2011-0683, CVE-2011-0684, CVE-2011-0685, CVE-2011-0686, CVE-2011-0687

BID: 45951, 46003, 46036