CVE-2016-9263

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.

Category

4.7
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.68% Top 20%
Third-Party Advisory securityfocus.com Third-Party Advisory opnsec.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/101294 vdb entry third party advisory
https://opnsec.com/2017/10/cve-2016-9263-unpatched-xsf-vulnerability-in-wordpress/ third party advisory mitigation

Frequently Asked Questions

What is the severity of CVE-2016-9263?
CVE-2016-9263 has been scored as a medium severity vulnerability.
How to fix CVE-2016-9263?
To fix CVE-2016-9263, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-9263 being actively exploited in the wild?
It is possible that CVE-2016-9263 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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