CVE-2005-0456
Opera 7.54 and earlier does not properly validate base64 encoded binary data in a data: (RFC 2397...
Opera 7.54 and earlier does not properly validate base64 encoded binary data in a data: (RFC 2397) URL, which causes the URL to be obscured in a download dialog, which may allow remote attackers to trick users into executing arbitrary code.
Exploit likelihood
What each source reports
NVD Score used
Opera 7.54 and earlier does not properly validate base64 encoded binary data in a data: (RFC 2397) URL, which causes the URL to be obscured in a download dialog, which may allow remote attackers to trick users into executing arbitrary code.
- Record
CVE-2005-0456- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Updated
- 2026-11-02
CVE List No score
Opera 7.54 and earlier does not properly validate base64 encoded binary data in a data: (RFC 2397) URL, which causes the URL to be obscured in a download dialog, which may allow remote attackers to trick users into executing arbitrary code.
- Record
CVE-2005-0456- Updated
- 2026-11-02
EUVDEUVD-2005-0457 No score
Opera 7.54 and earlier does not properly validate base64 encoded binary data in a data: (RFC 2397) URL, which causes the URL to be obscured in a download dialog, which may allow remote attackers to trick users into executing arbitrary code.
- Record
EUVD-2005-0457- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qq49-j728-jmpv No score
Opera 7.54 and earlier does not properly validate base64 encoded binary data in a data: (RFC 2397...
Opera 7.54 and earlier does not properly validate base64 encoded binary data in a data: (RFC 2397) URL, which causes the URL to be obscured in a download dialog, which may allow remote attackers to trick users into executing arbitrary code.
- Record
GHSA-qq49-j728-jmpv- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2005-0456 is a medium vulnerability (CVSS 5.0) in Opera Browser, published January 12, 2005. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.40%, the 88th percentile. No source names a fixed version.
References
kb.cert.org/vuls/id/882926
secunia.com/advisories/13818
novell.com/linux/security/advisories/2005_31_opera.html
exchange.xforce.ibmcloud.com/vulnerabilities/18867
gentoo.org/security/en/glsa/glsa-200502-17.xml
opera.com/linux/changelogs/754u2
nvd.nist.gov/vuln/detail/CVE-2005-0456
github.com/advisories/GHSA-qq49-j728-jmpv