CVE-2010-4045

Severity: critical (CVSS 9.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2010-10-21 · updated 2026-06-16
Weakness: CWE-264

Description

Opera before 10.63 does not properly restrict web script in unspecified circumstances involving reloads and redirects, which allows remote attackers to spoof the Address Bar, conduct cross-site scripting (XSS) attacks, and possibly execute arbitrary code by leveraging the ability of a script to interact with a web page from (1) a different domain or (2) a different security context.

Affected products

Opera Browser: through 10.62; 5.0, 5.0-beta2, 5.0-beta3, 5.0-beta4, 5.0-beta5, 5.0-beta6 (+103)

References

http://secunia.com/advisories/41740
http://securitytracker.com/id?1024570
http://www.opera.com/docs/changelogs/mac/1063/
http://www.opera.com/docs/changelogs/unix/1063/
http://www.opera.com/docs/changelogs/windows/1063/
http://www.opera.com/support/kb/view/973/
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12071
http://secunia.com/advisories/41740
http://securitytracker.com/id?1024570
http://www.opera.com/docs/changelogs/mac/1063/
http://www.opera.com/docs/changelogs/unix/1063/
http://www.opera.com/docs/changelogs/windows/1063/

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