Unscored severity · published Aug 6, 2012
CVE-2012-4142
Opera before 12.01 on Windows and UNIX, and before 11.66 and 12.x before 12.01 on Mac OS X, ignores some characters in HTML documents in unspecified circumstances, which makes it…
–
CVSS
1.2%
EPSS
No
On KEV
Description
Opera before 12.01 on Windows and UNIX, and before 11.66 and 12.x before 12.01 on Mac OS X, ignores some characters in HTML documents in unspecified circumstances, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via a crafted document.
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 67% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OB
Opera Browser · Opera
through 12.00; 12.00; through 11.65; 10.00; 10.00; 10.00; +34 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2012-4142
CVE.org
https://www.cve.org/CVERecord?id=CVE-2012-4142
www.opera.com
http://www.opera.com/docs/changelogs/mac/1166/
www.opera.com
http://www.opera.com/docs/changelogs/mac/1201/
www.opera.com
http://www.opera.com/docs/changelogs/unix/1201/
www.opera.com
http://www.opera.com/docs/changelogs/windows/1201/
Vendor Advisory
http://www.opera.com/support/kb/view/1026/
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