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.

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)

EPSS: 0.026 (83.4th percentile) — read the EPSS interpretation.

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.

Affected products

Wordpress
N/a — versions n/a

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

References

cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
cve@mitre.org (Third Party Advisory, x_refsource_MISC, 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.