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CVE-2010-4045

29
FAUCET Score

CVE-2010-4045 describes a critical vulnerability in Opera versions prior to 10.63, where improper web script restrictions during reloads and redirects allow attackers to spoof the Address Bar, perform cross-site scripting (XSS), and potentially execute arbitrary code. With a CVSS score of 9.3 (Critical), this vulnerability is remotely exploitable with medium attack complexity, leading to complete compromise of confidentiality, integrity, and availability. Despite its high severity and potential impact, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 10.62CPE matchmatch criteria
cpe:2.3:a:opera:opera_browser:*:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:a:opera:opera_browser:5.0:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:a:opera:opera_browser:5.0:beta2:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:a:opera:opera_browser:5.0:beta3:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:a:opera:opera_browser:5.0:beta4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

AV:N/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.96%
Probability of exploitation in next 30 days
EPSS Percentile
91.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0496 is in the 59th percentile among its peer group of 8,920 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

secunia.com / advisories/41740
Vendor Advisory
securitytracker.com / id
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12071
opera.com / docs/changelogs/mac/1063
opera.com / docs/changelogs/unix/1063
opera.com / docs/changelogs/windows/1063
opera.com / support/kb/view/973
Vendor Advisory