PT-2023-20077 · WordPress · Wp User Switch

István Márton + 1 · Published 2023-06-06 · Updated 2023-06-13 · CVE-2023-2546

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions WP User Switch plugin for WordPress versions up to, and including, 1.0.2

Description The issue is due to incorrect authentication checking in the wpus allow user to admin bar menu function with the wpus who switch cookie value. This allows attackers with access to a username to log in as any existing user on the site, including administrators. The attackers need to have subscriber-level permissions or above to exploit this issue.

Recommendations For WP User Switch plugin for WordPress versions up to, and including, 1.0.2, consider disabling the wpus allow user to admin bar menu function until a patch is available. Restrict access to the wpus who switch cookie value to minimize the risk of exploitation. Avoid using the wpus who switch cookie value in authentication processes until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Authentication Bypass Using an Alternate Path or Channel

Weakness Enumeration

CWE-288

Related Identifiers

CVE-2023-2546

Affected Products

Wp User Switch

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2023-2546 · Security Note
• https://wordfence.com/threat-intel/vulnerabilities/id/e89d912d-fa7a-4fb1-8872-95fa861c21ca?source=cve · Patch
• https://plugins.trac.wordpress.org/changeset/2921182/wp-user-switch/trunk/inc/functions.php · Patch
• https://osv.dev/vulnerability/CVE-2023-2546 · Vendor Advisory
• https://plugins.trac.wordpress.org/browser/wp-user-switch/trunk/inc/functions.php?rev=2237142#L33 · Note
• https://lana.codes/lanavdb/0cfdc5fa-d219-46bb-b8cc-693ac28a9e92 · Note
• https://t.me/cvenotify/51833 · Telegram Post