CVE-2026-16142Network attack vector

Unauthenticated account takeover via arbitrary user ID

Published Aug 15, 2026 · Updated Aug 15, 2026

Authorization bypass in ThemetechMount TrueBooker 1.2.6 and earlier allows remote attackers to take over WordPress accounts. The unauthenticated add_front_user_update AJAX handler accepts an arbitrary truebooker_wp_user_id and passes it to wp_update_user without authentication or ownership checks. Attackers can replace any user's email address, including an administrator's, then receive the native password-reset link and assume control of that account.

CVSS severity9.8
Critical
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in ThemetechMount TrueBooker 1.2.6 and earlier allows remote attackers to take over WordPress accounts. The unauthenticated add_front_user_update AJAX handler accepts an arbitrary truebooker_wp_user_id and passes it to wp_update_user without authentication or ownership checks. Attackers can replace any user's email address, including an administrator's, then receive the native password-reset link and assume control of that account.

The record

CVE
CVE-2026-16142
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
ThemetechMount
Product
TrueBooker
Classifications
CWE-639, T1098
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 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 <=1.2.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ThemetechMount · TrueBookerversion=0 <=1.2.6

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-639Authorization Bypass Through User-Controlled Key
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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