CVE-2026-22199

wpDiscuz before 7.6.47 contains a vote manipulation vulnerability that allows attackers to manipulate comment votes by obtaining fresh nonces and bypassing rate limiting through client-controlled headers. Attackers can vary User-Agent headers to reset rate limits, request nonces from the unauthenticated wpdGetNonce endpoint, and vote multiple times using IP rotation or reverse proxy header manipulation.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://wordpress.org/plugins/wpdiscuz/	Product
https://wordpress.org/plugins/wpdiscuz/#developers	Product Release Notes
https://www.vulncheck.com/advisories/wpdiscuz-before-vote-manipulation-via-nonce-oracle-and-ip-rotation	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gvectors:wpdiscuz:*:*:*:*:*:wordpress:*:*

History

17 Mar 2026, 20:26

Type	Values Removed	Values Added
First Time		Gvectors Gvectors wpdiscuz
CPE		cpe:2.3:a:gvectors:wpdiscuz::::::wordpress::*
References	~~() https://wordpress.org/plugins/wpdiscuz/ -~~	() https://wordpress.org/plugins/wpdiscuz/ - Product
References	~~() https://wordpress.org/plugins/wpdiscuz/#developers -~~	() https://wordpress.org/plugins/wpdiscuz/#developers - Product, Release Notes
References	~~() https://www.vulncheck.com/advisories/wpdiscuz-before-vote-manipulation-via-nonce-oracle-and-ip-rotation -~~	() https://www.vulncheck.com/advisories/wpdiscuz-before-vote-manipulation-via-nonce-oracle-and-ip-rotation - Third Party Advisory

13 Mar 2026, 19:54

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-13 19:54

Updated : 2026-03-17 20:26

NVD link : CVE-2026-22199

Mitre link : CVE-2026-22199

CVE.ORG link : CVE-2026-22199

JSON object : View

Products Affected

gvectors

wpdiscuz

CWE

CWE-290

Authentication Bypass by Spoofing

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