XSS in Mozilla Firefox
CVE-2016-5262
Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 process JavaScript event-handler attributes of a MARQUEE element within a sandboxed IFRAME element that lacks the sandbox="allow-scripts" attribute value, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via a crafted web site.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.015 (72.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 72.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- Mozilla Firefox — versions 45.1.0, 45.1.1, 45.2.0
- Oracle Linux — versions 5.0, 6, 7
Weakness classification (CWE)
References
- www.debian.org/security/2016/dsa-3640 (vendor-advisory)
- www.securitytracker.com/id/1036508 (vdb-entry)
- www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html (Third Party Advisory)
- www.mozilla.org/security/announce/2016/mfsa2016-76.html (Vendor Advisory)
- www.ubuntu.com/usn/USN-3044-1 (vendor-advisory)
- www.securityfocus.com/bid/92258 (vdb-entry)
- rhn.redhat.com/errata/RHSA-2016-1551.html (vendor-advisory)
- security.gentoo.org/glsa/201701-15 (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00004.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00029.html (vendor-advisory)
Frequently asked questions
- What is CVE-2016-5262?
- CVE-2016-5262 is a medium-severity vulnerability in Mozilla Firefox, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2016-08-05.
- How severe is CVE-2016-5262?
- Medium severity. CVSS v3 base score is 6.1 out of 10.