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All vulnerabilities

WordPress core

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.

Severity
Medium 4.7
Published
12 Oct 2017
Last changed
17 Jun 2026
Added to UpHeron
17 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
WordPressWordPress core · cpe:a:wordpress:wordpress
  • Every version up to 4.8.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-9263
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-9263