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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 with

medium Affects WordPress core. Feed 2026.10.29.1, updated 2026-10-28; published ; advisory modified .

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 with

Package
WordPress core WordPress
Affected versions
<=4.8.2
Fixed in
no fix recorded
Severity
medium  CVSS 4.7
Exploitation
not on CISA KEV · EPSS 2% (82.3th percentile)
Published
2017-10-12
Source
nvd

References

CWE-20
NVD recordWordPress core advisories

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