CVE-2015-0818

CVE-2015-0818 is a high-severity vulnerability in Mozilla Firefox with a CVSS 2.0 base score of 7.5. 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-264.

Key facts

Description

Mozilla Firefox before 36.0.4, Firefox ESR 31.x before 31.5.3, and SeaMonkey before 2.33.1 allow remote attackers to bypass the Same Origin Policy and execute arbitrary JavaScript code with chrome privileges via vectors involving SVG hash navigation.

Frequently asked questions

What is CVE-2015-0818?
Mozilla Firefox before 36.0.4, Firefox ESR 31.x before 31.5.3, and SeaMonkey before 2.33.1 allow remote attackers to bypass the Same Origin Policy and execute arbitrary JavaScript code with chrome privileges via vectors involving SVG hash navigation.
How severe is CVE-2015-0818?
CVE-2015-0818 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2015-0818 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-0818?
CVE-2015-0818 primarily affects Mozilla Firefox. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-0818?
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-2015-0818 published?
CVE-2015-0818 was published on 2015-03-24 and last updated on 2026-06-17.

References

Affected products (13)

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