CVE-2023-2546
The WP User Switch plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 1.0.2.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The WP User Switch plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 1.0.2. This is due to incorrect authentication checking in the 'wpus_allow_user_to_admin_bar_menu' function with the 'wpus_who_switch' cookie value. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to log in as any existing user on the site, such as an administrator, if they have access to the username.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.36% probability · 70th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-288
- Affected
- wp user switch project/wp user switch
- Source
- security@wordfence.com
References
- https://lana.codes/lanavdb/0cfdc5fa-d219-46bb-b8cc-693ac28a9e92/
- https://plugins.trac.wordpress.org/browser/wp-user-switch/trunk/inc/functions.php?rev=2237142#L33Product
- https://plugins.trac.wordpress.org/changeset/2921182/wp-user-switch/trunk/inc/functions.phpPatch
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e89d912d-fa7a-4fb1-8872-95fa861c21ca?source=cvePatch, Third Party Advisory
- https://lana.codes/lanavdb/0cfdc5fa-d219-46bb-b8cc-693ac28a9e92/
- https://plugins.trac.wordpress.org/browser/wp-user-switch/trunk/inc/functions.php?rev=2237142#L33Product
- https://plugins.trac.wordpress.org/changeset/2921182/wp-user-switch/trunk/inc/functions.phpPatch
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e89d912d-fa7a-4fb1-8872-95fa861c21ca?source=cvePatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.