CVE-2010-2666

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: 2010-07-08 · updated 2026-06-16
Weakness: CWE-264

Description

Opera before 10.54 on Windows and Mac OS X does not properly enforce permission requirements for widget filesystem access and directory selection, which allows user-assisted remote attackers to create or modify arbitrary files, and consequently execute arbitrary code, via widget File I/O operations.

Affected products

Opera Browser: through 10.53; 5.0, 5.0-beta2, 5.0-beta3, 5.0-beta4, 5.0-beta5, 5.0-beta6 (+95)

References

http://secunia.com/advisories/40250
http://www.opera.com/docs/changelogs/mac/1054/
http://www.opera.com/docs/changelogs/windows/1054/
http://www.opera.com/support/kb/view/962/
http://www.securityfocus.com/bid/40973
http://www.vupen.com/english/advisories/2010/1529
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11950
http://secunia.com/advisories/40250
http://www.opera.com/docs/changelogs/mac/1054/
http://www.opera.com/docs/changelogs/windows/1054/
http://www.opera.com/support/kb/view/962/
http://www.securityfocus.com/bid/40973

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