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CVE-2016-9263

MEDIUM 4.7 CVSS 3.0
Published
October 12, 2017
Last modified
June 17, 2026
NVD status
Modified
Reported by
cve@mitre.org
Weakness
CWE-20
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

Description

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.

Affected WordPress components

  • WordPress core
    Confirmed match
    Up to and including 4.8.2

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • n/a n/a — Versions not specified
  • wordpress wordpress — Up to and including 4.8.2

References

  • www.securityfocus.com http://www.securityfocus.com/bid/101294 Third Party Advisory, VDB Entry
  • opnsec.com https://opnsec.com/2017/10/cve-2016-9263-unpatched-xsf-vulnerability-in-wordpress/ Mitigation, Third Party Advisory
  • nvd.nist.gov Official NVD record