Back
CVE-2016-9895
Event handlers on "marquee" elements were executed despite a strict Content Security Policy (CSP) that disallowed inline JavaScript. This…
Medium6.1EPSS 1.8%
- Published
- Updated
- Reserved
- Assigned by
- mozilla
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium6.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 1.8% · top 21% of all CVEs (2 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.
Weakness
- CSP bypass using marquee tag
- CWE-254 (opens in a new tab)
Affected products
Mozilla · Firefox
- affected unspecified – < 50.1
Mozilla · Firefox ESR
- affected unspecified – < 45.6
Mozilla · Thunderbird
- affected unspecified – < 45.6
References (10)
- https://www.mozilla.org/security/advisories/mfsa2016-94/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.mozilla.org/security/advisories/mfsa2016-95/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- 94885 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1037461 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- GLSA-201701-15 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- DSA-3757 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=1312272 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2016:2973 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://www.mozilla.org/security/advisories/mfsa2016-96/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2016:2946 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .