CVE-2018-12895
wordpress - security update
8.8
HIGH
CVSS 3.1
EPSS 62.6%
描述
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.
如何修補 CVE-2018-12895
要修補 CVE-2018-12895,請將受影響套件升級到下列已修補版本。
- —升級至 4.9.7+dfsg1-1 或更新版本
- —升級至 4.7.5+dfsg-2+deb9u4 或更新版本
CVE-2018-12895 正在被利用嗎?
可能 — EPSS 為 62.6%,屬於高被利用機率區間,建議優先修補。
受影響套件(2)
- from 0, < 4.9.7+dfsg1-1
- from 0, < 4.7.5+dfsg-2+deb9u4
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |