Improper input validation in WordPress
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 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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.083 (94.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.083 · newest: 0.083 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- youtu.be/GePBmsNJw6Y (Third Party Advisory)
- www.theregister.co.uk/2018/08/20/php_unserialisation_wordpress_vuln/ (Third Party Advisory)
- www.securityfocus.com/bid/105306 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2018-1000773?
- CVE-2018-1000773 is a high-severity vulnerability in WordPress, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2018-09-06.
- How severe is CVE-2018-1000773?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2018-1000773 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.