CVE-2004-2491

Severity: low (CVSS 2.6 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2004-12-31 · updated 2026-06-16
Weakness: CWE-362

Description

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.

Affected products

Opera Browser: through 7.53

References

http://archives.neohapsis.com/archives/fulldisclosure/2004-07/1056.html
http://secunia.com/advisories/12162
http://www.opera.com/windows/changelogs/754/
http://www.osvdb.org/8317
http://www.securityfocus.com/bid/10810
https://exchange.xforce.ibmcloud.com/vulnerabilities/16816
http://archives.neohapsis.com/archives/fulldisclosure/2004-07/1056.html
http://secunia.com/advisories/12162
http://www.opera.com/windows/changelogs/754/
http://www.osvdb.org/8317
http://www.securityfocus.com/bid/10810
https://exchange.xforce.ibmcloud.com/vulnerabilities/16816

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