CVE-2007-0800

CVE-2007-0800 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.

Key facts

Description

Cross-zone vulnerability in Mozilla Firefox 1.5.0.9 considers blocked popups to have an internal zone origin, which allows user-assisted remote attackers to cross zone restrictions and read arbitrary file:// URIs by convincing a user to show a blocked popup.

Frequently asked questions

What is CVE-2007-0800?
Cross-zone vulnerability in Mozilla Firefox 1.5.0.9 considers blocked popups to have an internal zone origin, which allows user-assisted remote attackers to cross zone restrictions and read arbitrary file:// URIs by convincing a user to show a blocked popup.
How severe is CVE-2007-0800?
CVE-2007-0800 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2007-0800 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-0800?
CVE-2007-0800 affects Mozilla Firefox. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-0800?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-0800 published?
CVE-2007-0800 was published on 2007-02-07 and last updated on 2026-06-16.

References

Affected products (1)

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