CVE-2004-2491 EXPLOIT
2.6
LOW · CVSS 2.0 · EPSS 6.3% (pctl 93)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 2.6 (LOW, v2.0) |
|---|---|
| Vector | AV:N/AC:H/Au:N/C:N/I:P/A:N |
| EPSS | 6.32% — more likely to be exploited than 93% of all CVEs |
| Weakness | CWE-362 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2004-12-31 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| opera | opera browser |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Opera Web Browser 7.53 - Location Replace URI Obfuscation | 2004-07-27 |
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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