High severity · published Sep 6, 2018
CVE-2018-1000773
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…
8.8
CVSS
8.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)8.3% · higher than 95% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WO
WordPress · WordPress
through 4.9.8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-1000773
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-1000773
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
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