CVE-2026-22199

MEDIUM 5.3

wpDiscuz before 7.6.47 - Vote Manipulation via Nonce Oracle and IP Rotation

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-290
Vendor	gvectors
Product	wpdiscuz
Published	Mar 13, 2026
Last Updated	Mar 13, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Affected Versions

gVectors / wpDiscuz

0 < 7.6.47

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordpress.org: https://wordpress.org/plugins/wpdiscuz/#developers wordpress.org: https://wordpress.org/plugins/wpdiscuz/ vulncheck.com: https://www.vulncheck.com/advisories/wpdiscuz-before-vote-manipulation-via-nonce-oracle-and-ip-rotation

Credits

Scott Moore - VulnCheck