XSS in Mediaelementjs Mediaelement.js
CVE-2016-4567
Cross-site scripting (XSS) vulnerability in flash/FlashMediaElement.as in MediaElement.js before 2.21.0, as used in WordPress before 4.5.2, allows remote attackers to inject arbitrary web script or HTML via an obfuscated form of the jsinitfunction parameter, as demonstrated by "jsinitfunctio%gn."
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: 0.074 (94.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.070 · newest: 0.074 · change: +0.004
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/johndyer/mediaelement/blob/master/changelog.md (Patch, Vendor Advisory)
- www.openwall.com/lists/oss-security/2016/05/07/2 (mailing-list)
- codex.wordpress.org/Version_4.5.2 (Patch, Vendor Advisory)
- www.securitytracker.com/id/1035818 (VDB Entry, Third Party Advisory, vdb-entry)
- gist.github.com/cure53/df34ea68c26441f3ae98f821ba1feb9c (Third Party Advisory)
- github.com/johndyer/mediaelement/commit/34834eef8ac830b9145df169ec22016a4350f06e (Patch, Vendor Advisory)
- wpvulndb.com/vulnerabilities/8488 (Third Party Advisory)
- wordpress.org/news/2016/05/wordpress-4-5-2/ (Patch, Vendor Advisory)
- core.trac.wordpress.org/changeset/37371 (Patch)
Frequently asked questions
- What is CVE-2016-4567?
- CVE-2016-4567 is a medium-severity vulnerability in Mediaelementjs Mediaelement.js, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2016-05-22.
- How severe is CVE-2016-4567?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2016-4567 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.