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Advisories

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

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severity
medium
date
Affecting

  • wpDiscuz < 7.6.47

CWE
  • CWE-290 Authentication Bypass by Spoofing
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Credit
Scott Moore - VulnCheck
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.

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