Booking Manager < 2.1.21 - Subscriber+ Arbitrary User Plugin Meta Modification via IDOR (CVE-2026-91025) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-91025

Booking Manager < 2.1.21 - Subscriber+ Arbitrary User Plugin Meta Modification via IDOR

Answer in brief

CVE-2026-91025 records a Unknown severity vulnerability in Booking Manager < 2.1.21 - Subscriber+ Arbitrary User Plugin Meta Modification via IDOR. The current sources do not mark it as known exploited. The current feed maps Unknown/Booking Manager (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 Sep 23, 2026Updated Sep 23, 2026Source checked Sep 23, 2026First seen by HOL Sep 23, 2026Material review Sep 23, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. 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/Booking Manager (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Unknown/Booking Managergeneric	>=0 <2.1.21	2.1.21

Recommended response

Check inventory. Check lockfiles and deployed manifests for Unknown/Booking Manager.
Review the reported fix. Update Unknown/Booking Manager to 2.1.21 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 23, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 23, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 23, 2026

Sources and claim methodology

Source referencewpscan.com

Upstream source description

The Booking Manager WordPress plugin before 2.1.21 does not verify that a request to modify a user's Booking Manager WordPress plugin before 2.1.21-specific settings targets the requesting user's own account, allowing any authenticated user with subscriber-level access and above to create or overwrite the Booking Manager WordPress plugin before 2.1.21's per-user settings on arbitrary users, including administrators.

Quoted source text, attributed separately from HOL analysis.