CVE-2010-0178

CVE-2010-0178 is a high-severity vulnerability in Mozilla Firefox with a CVSS 2.0 base score of 7.6. 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-94.

Key facts

• Severity: High (CVSS 2.0 base score 7.6)
• EPSS exploit prediction: 3% (88th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-94
• Affected product: Mozilla Firefox
• Published: 2010-04-05
• Last modified: 2026-06-16

Description

Mozilla Firefox before 3.0.19, 3.5.x before 3.5.9, and 3.6.x before 3.6.2, and SeaMonkey before 2.0.4, does not prevent applets from interpreting mouse clicks as drag-and-drop actions, which allows remote attackers to execute arbitrary JavaScript with Chrome privileges by loading a chrome: URL and then loading a javascript: URL.

Frequently asked questions

What is CVE-2010-0178?

Mozilla Firefox before 3.0.19, 3.5.x before 3.5.9, and 3.6.x before 3.6.2, and SeaMonkey before 2.0.4, does not prevent applets from interpreting mouse clicks as drag-and-drop actions, which allows remote attackers to execute arbitrary JavaScript with Chrome privileges by loading a chrome: URL and then loading a javascript: URL.

How severe is CVE-2010-0178?

CVE-2010-0178 has a CVSS 2.0 base score of 7.6, rated high severity.

Is CVE-2010-0178 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-0178?

CVE-2010-0178 primarily affects Mozilla Firefox. In total, 144 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-0178?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2010-0178 published?

CVE-2010-0178 was published on 2010-04-05 and last updated on 2026-06-16.

References

• http://lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html
• http://secunia.com/advisories/39136
• http://secunia.com/advisories/39240
• http://secunia.com/advisories/39243
• http://secunia.com/advisories/39308
• http://secunia.com/advisories/39397
• http://securitytracker.com/id?1023776
• http://ubuntu.com/usn/usn-921-1
• http://www.debian.org/security/2010/dsa-2027
• http://www.mandriva.com/security/advisories?name=MDVSA-2010:070
• http://www.mozilla.org/security/announce/2010/mfsa2010-20.html
• http://www.redhat.com/support/errata/RHSA-2010-0332.html
• http://www.vupen.com/english/advisories/2010/0748
• http://www.vupen.com/english/advisories/2010/0764
• http://www.vupen.com/english/advisories/2010/0781
• http://www.vupen.com/english/advisories/2010/0849
• https://bugzilla.mozilla.org/show_bug.cgi?id=546909
• https://exchange.xforce.ibmcloud.com/vulnerabilities/57391
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10460
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6975

Affected products (144)

• cpe:2.3:a:mozilla:firefox:3.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:3.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:3.5.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:3.5.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:3.5.4:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:3.5.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:3.5.6:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:3.5.7:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:3.6:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.4:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.6:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.6.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.7:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.7.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.8:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.9:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.9:rc:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.9.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.9.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.9.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.10:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:0.10.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.0:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.0:preview_release:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.0.7:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.0.8:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5:*:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5:beta1:*:*:*:*:*:*
• cpe:2.3:a:mozilla:firefox:1.5:beta2:*:*:*:*:*:*

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