CVE-2026-12949Network attack vector

Unauthenticated account takeover via unbound user ID

Published Aug 14, 2026 · Updated Aug 14, 2026

Authentication failure in WishList Member 3.34.1 and earlier allows remote attackers to take over any WordPress account via registration. wpm_register() binds its cookie only to the GET reg value, then accepts an arbitrary POST mergewith user ID and overwrites that account through wp_update_user(). Unauthenticated access is sufficient, and an invalid wpm_id preserves the target role, including Administrator, while attacker-controlled credentials and profile data replace the originals.

CVSS severity9.8
Critical
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication failure in WishList Member 3.34.1 and earlier allows remote attackers to take over any WordPress account via registration. wpm_register() binds its cookie only to the GET reg value, then accepts an arbitrary POST mergewith user ID and overwrites that account through wp_update_user(). Unauthenticated access is sufficient, and an invalid wpm_id preserves the target role, including Administrator, while attacker-controlled credentials and profile data replace the originals.

The record

CVE
CVE-2026-12949
Published
Aug 14, 2026
Updated
Aug 14, 2026
Vendor
WishList Products
Product
WishList Member
Classifications
CWE-640, T1098
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=3.34.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WishList Products · WishList Memberversion=0 <=3.34.1

Published CVSS scores

9.8WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-640Weak Password Recovery Mechanism for Forgotten Password
T1098Account Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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