Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Unknown Salon Booking System — Salon Booking System – Free Version <= 10.30.33 - Unauthenticated Google Calendar Connection Hijack via OAuth Callback
AV AC PR UI S C I A CVSS EPSS %ile KEV
N H N N U N L L 4.8 .0017 6.8 —
AFFECTED
Product Versions Fixed
Salon Booking System unspecified —
TIMELINE
Jul 24 Reserved by WPScan
Aug 10 Published (CNA: WPScan)
Aug 11 EXPLOIT PUBLISHED — CVE-2026-17023 (Unknown Salon Booking System). Public exploit reference added.
Description
The Salon Booking System WordPress plugin through 10.30.33 does not perform any capability check or validate an OAuth state value on its Google Calendar authorization callback, which is also hooked for unauthenticated users, allowing an unauthenticated attacker to overwrite the site's stored Google Calendar connection tokens with attacker-controlled ones and hijack the integration. Exploitation requires the site to have configured its own Google OAuth client for the calendar feature.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| July 24, 2026 | Reserved | Reserved by WPScan |
| August 10, 2026 | Published | Published (CNA: WPScan) |
| August 11, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-17023 (Unknown Salon Booking System). Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Unknown | Salon Booking System | — | — | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-17023 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.