CVE-2008-4199

CVE-2008-4199 is a medium-severity vulnerability in Opera Opera Browser with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

• Severity: Medium (CVSS 2.0 base score 5.0)
• EPSS exploit prediction: 3% (85th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-200
• Affected product: Opera Opera Browser
• Published: 2008-09-27
• Last modified: 2026-06-16

Description

Opera before 9.52 does not prevent use of links from web pages to feed source files on the local disk, which might allow remote attackers to determine the validity of local filenames via vectors involving "detection of JavaScript events and appropriate manipulation."

Frequently asked questions

What is CVE-2008-4199?

Opera before 9.52 does not prevent use of links from web pages to feed source files on the local disk, which might allow remote attackers to determine the validity of local filenames via vectors involving "detection of JavaScript events and appropriate manipulation."

How severe is CVE-2008-4199?

CVE-2008-4199 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2008-4199 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-4199?

CVE-2008-4199 primarily affects Opera Opera Browser. In total, 85 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-4199?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2008-4199 published?

CVE-2008-4199 was published on 2008-09-27 and last updated on 2026-06-16.

References

• http://bugs.gentoo.org/show_bug.cgi?id=235298
• http://secunia.com/advisories/31549
• http://secunia.com/advisories/32538
• http://security.gentoo.org/glsa/glsa-200811-01.xml
• http://securitytracker.com/id?1020722
• http://www.openwall.com/lists/oss-security/2008/09/19/2
• http://www.openwall.com/lists/oss-security/2008/09/24/4
• http://www.opera.com/docs/changelogs/freebsd/952/
• http://www.opera.com/docs/changelogs/linux/952/
• http://www.opera.com/docs/changelogs/mac/952/
• http://www.opera.com/docs/changelogs/solaris/952/
• http://www.opera.com/docs/changelogs/windows/952/
• http://www.opera.com/support/search/view/896/
• http://www.securityfocus.com/bid/30768
• http://www.vupen.com/english/advisories/2008/2416
• https://exchange.xforce.ibmcloud.com/vulnerabilities/44557

Affected products (85)

• cpe:2.3:a:opera:opera_browser:*:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:5.0:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:5.0:beta2:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:5.0:beta3:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:5.0:beta4:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:5.0:beta5:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:5.0:beta6:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:5.0:beta7:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:5.0:beta8:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:5.02:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:5.10:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:5.11:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:5.12:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:6.0:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:6.0:beta1:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:6.0:beta2:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:6.0:beta3:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:6.0:tp1:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:6.0:tp2:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:6.0:tp3:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:6.1:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:6.01:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:6.1:beta1:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:6.02:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:6.03:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:6.04:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:6.05:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:6.06:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:6.11:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:6.12:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:7.0:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:7.0:beta1:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:7.0:beta1_v2:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:7.0:beta2:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:7.01:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:7.02:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:7.03:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:7.10:*:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:7.10:beta1:*:*:*:*:*:*
• cpe:2.3:a:opera:opera_browser:7.11:*:*:*:*:*:*:*

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