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.

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)

EPSS: 0.091 (94.8th percentile) — read the EPSS interpretation.

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.

Affected products

Wordpress
N/a — versions n/a

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)

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.