CVE-2018-1000773

high-risk
Published 2018-09-06

WordPress version 4.9.8 and earlier contains a CWE-20 Input Validation vulnerability in thumbnail processing that can result in remote code execution due to an incomplete fix for CVE-2017-1000600. This attack appears to be exploitable via thumbnail upload by an authenticated user and may require additional plugins in order to be exploited however this has not been confirmed at this time.

Do I need to act?

!
27.8% chance of exploitation in next 30 days
EPSS score — higher than 72% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Wordpress

References (6)

Third Party Advisory http://www.securityfocus.com/bid/105306
Third Party Advisory https://www.theregister.co.uk/2018/08/20/php_unserialisation_wordpress_vuln/
Third Party Advisory https://youtu.be/GePBmsNJw6Y?t=1763
Third Party Advisory http://www.securityfocus.com/bid/105306
Third Party Advisory https://www.theregister.co.uk/2018/08/20/php_unserialisation_wordpress_vuln/
Third Party Advisory https://youtu.be/GePBmsNJw6Y?t=1763
50
/ 100
high-risk
Severity 30/34 · Critical
Exploitability 15/34 · Moderate
Exposure 5/34 · Minimal