CVE-2005-0456 json
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…
published 2005-01-12 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-0457
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.4%
- EPSS 3.4% chance of exploitation in 30 days, percentile 88%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- gentoo.org/security/en/glsa/glsa-200502-17.xml advisory
- secunia.com/advisories/13818/ advisory
- opera.com/linux/changelogs/754u2/ advisory
Exploit prediction
3.40% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
References
-
gentoo.org
/security/en/glsa/glsa-200502-17.xml
vendor-advisory, patch, third-party-advisory
-
secunia.com
/advisories/13818/
third-party-advisory, broken-link, patch
-
opera.com
/linux/changelogs/754u2/
broken-link, patch, vendor-advisory
-
novell.com
/linux/security/advisories/2005_31_opera.html
vendor-advisory, broken-link
-
kb.cert.org
/vuls/id/882926
third-party-advisory, us-government-resource
-
exchange.xforce.ibmcloud.com
/vulnerabilities/18867
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2005-0456
- NVD CVE-2005-0456
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.