CVE-2012-1965

CVE-2012-1965 is a medium-severity vulnerability in Mozilla Firefox with a CVSS 2.0 base score of 4.3. 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-79.

Key facts

Description

Mozilla Firefox 4.x through 13.0 and Firefox ESR 10.x before 10.0.6 do not properly establish the security context of a feed: URL, which allows remote attackers to bypass unspecified cross-site scripting (XSS) protection mechanisms via a feed:javascript: URL.

Frequently asked questions

What is CVE-2012-1965?
Mozilla Firefox 4.x through 13.0 and Firefox ESR 10.x before 10.0.6 do not properly establish the security context of a feed: URL, which allows remote attackers to bypass unspecified cross-site scripting (XSS) protection mechanisms via a feed:javascript: URL.
How severe is CVE-2012-1965?
CVE-2012-1965 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2012-1965 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-1965?
CVE-2012-1965 primarily affects Mozilla Firefox. In total, 35 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-1965?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-1965 published?
CVE-2012-1965 was published on 2012-07-18 and last updated on 2026-06-16.

References

Affected products (35)

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