WordPress Core <= 5.0.3 - Path Traversal and Local File Inclusion

2019-02-19 00:00

Wilfried Becard

Strategic Overview

Status

Patched in 5.0.3

Affected CoreWordPress 5.0

Affected Version<= 5.0.2

CVSS6.5Medium

CVECVE-2019-8943

View all WordPress 5.0 vulnerabilities

Vulnerability Overview

WordPress through 5.0.3 allows Path Traversal in wp_crop_image(). An attacker (who has privileges to crop an image) can write the output image to an arbitrary directory via a filename containing two image extensions and ../ sequences, such as a filename ending with the .jpg?/../../file.jpg substring.

Technical Analysis

REMEDIATION: Update to version 5.0.3, or a newer patched version --- IDENTIFIER: CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')) The PHP application receives input from an upstream component, but it does not restrict or incorrectly restricts the input before its usage in require, include, or similar functions.

External References

https://www.cve.org/CVERecord?id=CVE-2019-8943 https://www.wordfence.com/threat-intel/vulnerabilities/id/58e3b7f1-26f4-453a-ae1f-a1e6eed0348c

CVSS Vector

6.5

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityHigh
AvailabilityNone

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