CVE-2018-1000773 : WordPress version 4.9.8 and earlier contains a CWE-20 Input Validation vulnerability in thumbnail processing that can re

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.

Published 2018-09-06 16:29:05

Updated 2018-11-14 14:10:09

Source MITRE

View at NVD, CVE.org

Vulnerability category: Input validationExecute code

Threat overview for CVE-2018-1000773

Top countries where our scanners detected CVE-2018-1000773

Top open port discovered on systems with this issue 80

IPs affected by CVE-2018-1000773 48

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2018-1000773!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2018-1000773

Probability of exploitation activity in the next 30 days: 0.99%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 82 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2018-1000773

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.5	MEDIUM	AV:N/AC:L/Au:S/C:P/I:P/A:P	8.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
8.8	HIGH	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	2.8	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2018-1000773

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-1000773

http://www.securityfocus.com/bid/105306

WordPress CVE-2018-1000773 Incomplete Fix Arbitrary File Upload Vulnerability
Third Party Advisory;VDB Entry
https://youtu.be/GePBmsNJw6Y?t=1763

BSidesMCR 2018: It's A PHP Unserialization Vulnerability Jim, But Not As We Know It by Sam Thomas - YouTube
Third Party Advisory

CVEs referencing this url
https://www.theregister.co.uk/2018/08/20/php_unserialisation_wordpress_vuln/

So phar, so FUD: PHP flaw puts WordPress sites at risk of hacks • The Register
Third Party Advisory

CVEs referencing this url

Products affected by CVE-2018-1000773