Paid Memberships Pro <= 2.12.3 - Authenticated (Subscriber+) Arbitrary File Upload

CVE	CVE-2023-6187
State	PUBLISHED
Assigner	Wordfence
Source Priority	CVE Program / NVD first with legacy fallback
Published	2023-11-18 02:15:49 UTC
Updated	2026-04-08 18:18:35 UTC
Description	The Paid Memberships Pro plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the 'pmpro_paypalexpress_session_vars_for_user_fields' function in versions up to, and including, 2.12.3. This makes it possible for authenticated attackers with subscriber privileges or above, to upload arbitrary files on the affected site's server which may make remote code execution possible. This can be exploited if 2Checkout (deprecated since version 2.6) or PayPal Express is set as the payment method and a custom user field is added that is only visible at profile, and not visible at checkout according to its settings.

Primary CVSS: v3.1 8.8 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-434 | CWE-434 CWE-434 Unrestricted Upload of File with Dangerous Type

Version	Source	Type	Score	Severity	Vector
3.1	[email protected]	Primary	8.8	HIGH	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
3.1	[email protected]	Secondary	7.5	HIGH	`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H`
3.1	CNA	DECLARED	7.5	HIGH	`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H`

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Type	Vendor	Product	Version	Update	Edition	Language
Application	Strangerstudios	Paid Memberships Pro	All	All	All	All

Source	Vendor	Product	Version	Platforms
CNA	Strangerstudios	Paid Memberships Pro Content Restriction User Registration Paid Subscriptions	affected 2.12.3 semver	Not specified

Reference	Source	Link	Tags
www.paidmembershipspro.com/pmpro-update-2-12-4	af854a3a-2127-422b-91ae-364da2661108	www.paidmembershipspro.com	Product
plugins.trac.wordpress.org/changeset/2997319/paid-memberships-pro/tags/2.12.4/includes/f...	af854a3a-2127-422b-91ae-364da2661108	plugins.trac.wordpress.org	Patch
www.wordfence.com/threat-intel/vulnerabilities/id/5979f2eb-2ca8-4b06-814c-c4236...	af854a3a-2127-422b-91ae-364da2661108	www.wordfence.com	Patch, Third Party Advisory
plugins.trac.wordpress.org/changeset/2997319/paid-memberships-pro/tags/2.12.4/includes/f...	af854a3a-2127-422b-91ae-364da2661108	plugins.trac.wordpress.org	Patch
plugins.trac.wordpress.org/browser/paid-memberships-pro/tags/2.12.3/includes/fields.php	af854a3a-2127-422b-91ae-364da2661108	plugins.trac.wordpress.org	Product
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

CNA: István Márton (en)

There are currently no legacy QID mappings associated with this CVE.