CVE-2023-3636 | WP Project Manager <= 2.6.4 - Arbitrary Usermeta Update to Authenticated (Subscriber+) Privilege Escalation

The WP Project Manager plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 2.6.4 due to insufficient restriction on the 'save_users_map_name' function. This makes it possible for authenticated attackers, with minimal permissions such as a subscriber, to modify their user role by supplying the 'usernames' parameter.

Published: 2023-08-31 Last update: 2026-04-08 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-3636 is rated Moderate Risk (43.7/100): CVSS High severity, with low exploitation likelihood (EPSS 0.08%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-3636

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 0.17% 0.08% -0.09%
2 2025-11-18 0.11% 0.17% +0.06%
3 2025-04-15 — 0.11% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-3636

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]

Weakness enumeration for CVE-2023-3636

Affected software / configurations for CVE-2023-3636

Vendor Product Version Raw CPE
wedevs wp_project_manager < 2.6.5 cpe:2.3:a:wedevs:wp_project_manager:*:*:*:*:*:wordpress:*:*

References for CVE-2023-3636

cvelogic Threat Intelligence