CVE-2026-22199 | THREATINT

Description

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.

PUBLISHED Reserved 2026-01-06 | Published 2026-03-13 | Updated 2026-03-13 | Assigner VulnCheck

MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Problem types

Authentication Bypass by Spoofing

Product status

Default status

unaffected

Any version before 7.6.47

affected

7.6.47

unaffected

Credits

Scott Moore - VulnCheck finder

References

wordpress.org/plugins/wpdiscuz/ (wpDiscuz Changelog) patch

wordpress.org/plugins/wpdiscuz/ (wpDiscuz) product

www.vulncheck.com/...lation-via-nonce-oracle-and-ip-rotation (VulnCheck Advisory: wpDiscuz before 7.6.47 - Vote Manipulation via Nonce Oracle and IP Rotation) third-party-advisory

cve.org (CVE-2026-22199)

nvd.nist.gov (CVE-2026-22199)

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