Improper input validation in WordPress
CVE-2016-9263
WordPress through 4.8.2, when domain-based flashmediaelement.swf sandboxing is not used, allows remote attackers to conduct cross-domain Flash injection (XSF) attacks by leveraging code contained within the wp-includes/js/mediaelement/flashmediaelement.swf file.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.022 (81.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/101294 (VDB Entry, Third Party Advisory, vdb-entry)
- opnsec.com/2017/10/cve-2016-9263-unpatched-xsf-vulnerability-in-wordpress/ (Third Party Advisory, Mitigation)
Frequently asked questions
- What is CVE-2016-9263?
- CVE-2016-9263 is a medium-severity vulnerability in WordPress, classified under Improper Input Validation. CVSS score: 4.7/10. Published 2017-10-12.
- How severe is CVE-2016-9263?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2016-9263 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.