CVE-2017-17091 Information

Description

wp-admin/user-new.php in WordPress before 4.9.1 sets the newbloguser key to a string that can be directly derived from the user ID which allows remote attackers to bypass intended access restrictions by entering this string.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.securityfocus.com/bid/102024 https://codex.wordpress.org/Version_4.9.1 https://github.com/WordPress/WordPress/commit/eaf1cfdc1fe0bdffabd8d879c591b864d833326c https://lists.debian.org/debian-lts-announce/2017/12/msg00019.html https://wordpress.org/news/2017/11/wordpress-4-9-1-security-and-maintenance-release/ https://wpvulndb.com/vulnerabilities/8969 https://www.debian.org/security/2018/dsa-4090

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8