CVE-2018-12895
HIGH 8.8EPSS 62.2%
WordPress through 4.9.6 allows Author users to execute arbitrary code by leveraging directory traversal in the wp-admin/post.php thumb parameter, which is passed to the PHP unlink function and can delete the wp-config.php file. This is related to missing filename validation in the wp-includes/post.php wp_delete_attachment function. The attacker must have capabilities for files and posts that are normally available only to the Author, Editor, and Administrator roles. The attack methodology is to delete wp-config.php and then launch a new installation process to increase the attacker's privileges.
- CVSS v3.1
- 8.8 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS v2.0
- 6.5 MEDIUM
AV:N/AC:L/Au:S/C:P/I:P/A:P - EPSS
- 62.16% chance of exploitation in the next 30 days, 99th percentile
- Nuclei
- low
- Published
- 2018-06-26
- Updated
- 2024-08-05
Proof-of-concept exploits (2)
- http://packetstormsecurity.com/files/164633/WordPress-4.9.6-Arbitrary-File-Deletion.html
- bloom-ux/cve-2018-12895-hotfix0★ · 2022-04-27