CVE-2016-9895
CVSS v3
6.1
MEDIUM
EPSS Score
1.8 %
exploit probability, as of 2026-10-19
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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Affected and fixed versions
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
Mozilla: CSP bypass using marquee tag (MFSA 2016-94, MFSA 2016-95)
Red Hat Security Advisory: thunderbird security update
Red Hat Security Advisory: firefox security update
Description
Event handlers on "marquee" elements were executed despite a strict Content Security Policy (CSP) that disallowed inline JavaScript. This vulnerability affects Firefox < 50.1, Firefox ESR < 45.6, and Thunderbird < 45.6.
Technical details
- Published
- 2018-06-11
Frequently asked questions
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