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Fencer Intel
high 8.1

CVE-2026-123711 json

WPCOM Member < 1.8.3 - Unauthenticated Account Takeover via WeChat Login Code Brute-Force

published 2d ago modified yesterday also EUVD-2026-124847

cvss
8.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 13%
public exploits
0
none known

Summary

The WPCOM Member WordPress plugin before 1.8.3 does not limit or bind attempts to verify WeChat login codes, allowing unauthenticated attackers to brute-force a code issued to another user and log in as that user, including administrators, when WeChat official-account keyword login is enabled.

Patch / fix

  • Unknown WPCOM Member 1.8.3

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
yesterday

Exploit prediction

0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-14).

Exploits and checks

  • wpscan.com https://wpscan.com/vulnerability/7d7ca1b4-0d9e-4127-8252-cfe0bb51b18a/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Unknown WPCOM Member

Classification

Weakness
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.