CVE-2021-34627

WP Upload Restriction <= 2.2.3 - Missing Access Control in getSelectedMimeTypesByRole function

4.3 Medium

A vulnerability in the getSelectedMimeTypesByRole function of the WP Upload Restriction WordPress plugin allows low-level authenticated users to view custom extensions added by administrators. This issue affects versions 2.2.3 and prior.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

0.70%Up 0.3 points since Jul 8, 2021

What each source reports

CVE List Score used 4.3

WP Upload Restriction <= 2.2.3 - Missing Access Control in getSelectedMimeTypesByRole function

Record: CVE-2021-34627
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-284
Updated: 2026-11-02

EUVDEUVD-2021-21277 4.3

Record: EUVD-2021-21277
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-03

GitHub AdvisoriesGHSA-335f-9mr2-fg88 4.3

A vulnerability in the getSelectedMimeTypesByRole function of the WP Upload Restriction WordPress...

Record: GHSA-335f-9mr2-fg88
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-863
Updated: 2026-11-02

NVD 4.3

Record: CVE-2021-34627
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0: 3.5 LowAV:N/AC:M/Au:S/C:P/I:N/A:N
Weakness: CWE-284
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-34627 is a medium vulnerability (CVSS 4.3) in Wp Upload Restriction Upload Restriction, published July 7, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.70%, the 53rd percentile. No source names a fixed version.