CVE-2026-13598Network attack vector

Administrator account creation via trusted registration role

Published Aug 23, 2026 · Updated Aug 23, 2026

Privilege escalation in RestrictMate before 1.3.0 allows remote attackers to create administrator accounts through public registration. The registration handler trusts an attacker-supplied role parameter, assigns the Administrator role, and automatically starts the new account's session. The registration form must be exposed, and successful exploitation grants full WordPress site control without prior authentication.

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

What happened

Privilege escalation in RestrictMate before 1.3.0 allows remote attackers to create administrator accounts through public registration. The registration handler trusts an attacker-supplied role parameter, assigns the Administrator role, and automatically starts the new account's session. The registration form must be exposed, and successful exploitation grants full WordPress site control without prior authentication.

The record

CVE
CVE-2026-13598
Published
Aug 23, 2026
Updated
Aug 23, 2026
Vendor
RestrictMate
Product
RestrictMate
Classifications
CWE-269, T1136.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 23, 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 <1.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

RestrictMate · RestrictMateversion=0 <1.3.0

Published CVSS scores

9.8TenableCVSS: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-269Improper Privilege Management
T1136.001Create Account: Local Account

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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