Unknown severity · Source severity not reportedCVE-2026-105195

Booking Calendar 10.15 - 11.8.2 - Editor+ Arbitrary Option DisclosureCVE-2026-105195

Answer in brief

CVE-2026-105195 records a Unknown severity vulnerability in Booking Calendar 10.15 - 11.8.2 - Editor+ Arbitrary Option Disclosure. The current sources do not mark it as known exploited. The current feed maps Unknown/Booking Calendar (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 Oct 8, 2026Updated Oct 8, 2026Source checked Oct 8, 2026First seen by HOL Oct 8, 2026Material review Oct 8, 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 Calendar (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Unknown/Booking Calendargeneric	>=10.15 <11.8.3	11.8.3

Recommended response

Check inventory. Check lockfiles and deployed manifests for Unknown/Booking Calendar.
Review the reported fix. Update Unknown/Booking Calendar to 11.8.3 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Oct 8, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 8, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 8, 2026

Sources and claim methodology

Source referencewpscan.com

Upstream source description

The Booking Calendar WordPress plugin before 11.8.3 does not adequately restrict which options a lower-privileged user can load through one of its settings handlers, allowing users with the Editor role and above to disclose the values of arbitrary WordPress options, including core site configuration.

Quoted source text, attributed separately from HOL analysis.