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  4. CVE 2026 13598 restrictmate 130 unauthenticated privilege
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Back to active CVEs
Critical · CVSS 9.8CVE-2026-13598

RestrictMate < 1.3.0 - Unauthenticated Privilege Escalation to AdministratorCVE-2026-13598

Answer in brief

CVE-2026-13598 records a Critical severity (CVSS 9.8) vulnerability in RestrictMate < 1.3.0 - Unauthenticated Privilege Escalation to Administrator. The current sources do not mark it as known exploited. The current feed maps Unknown/RestrictMate (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 23, 2026Updated Aug 28, 2026Source checked Oct 7, 2026First seen by HOL Aug 23, 2026Material review Aug 28, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.8
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Unknown/RestrictMate (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Unknown/RestrictMategeneric>=0 <1.3.01.3.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Unknown/RestrictMate.
  2. 2Review the reported fix. Update Unknown/RestrictMate to 1.3.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Aug 23, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Aug 28, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 23, 2026

Sources and claim methodology

  • Source referencewpscan.com
Upstream source description

The RestrictMate WordPress plugin before 1.3.0 does not restrict the user role supplied during account registration, allowing unauthenticated attackers to create a new administrator account and gain a logged-in administrator session, leading to full site takeover.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Backstage: Remote code execution via crafted markdown_extensions in TechDocs mkdocs.ymlSame generic ecosystem
  • Backstage: Configuration bypass in TechDocs mkdocs.yml sanitizationSame generic ecosystem
  • Backstage: Improper validation of TechDocs MkDocs configurationSame generic ecosystem
  • Backstage: Improper input validation in Confluence to Markdown scaffolder moduleSame generic ecosystem
  • Backstage: Improper repository path validation in a Scaffolder backend moduleSame generic ecosystem
  • Backstage: Sensitive information disclosure in Kubernetes resource queriesSame generic ecosystem

Record context

Vulnerability class
Privilege Escalation
EPSS
Not reported
CWE IDs
CWE-269
Source
CVE List V5
Source checked
Oct 7, 2026
References
1 linked source
Open source record