Vulnerability in WordPress (CVE-2026-103366)
Summary
Vulnerability in WordPress (CVE-2026-103366). Confidential information can be exposed externally. Exploitable via steps__reload_booking_form_summary_panel.
Original description
The description as published by the source.
The Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 5.7.3 via the booking[id] and cart[id] parameters on the steps__reload_booking_form_summary_panel and steps__start public routes (reachable through wp_ajax_nopriv_latepoint_route_call). This is due to OsStepsHelper::set_required_objects() feeding raw request parameters into set_booking_object() and set_cart_object(), which call OsModel::set_data() and load an arbitrary booking or cart row by primary key with no ownership check — the ownership guard the vendor added for the earlier disclosure lives only inside OsStepsHelper::load_step() and does not cover the sibling routes or cart[id] at all. This makes it possible for unauthenticated attackers to enumerate sequential booking / cart identifiers and read other customers' appointment details (service name, agent, date/time, duration, price breakdown, status) and other shoppers' pending checkout contents directly from the JSON responses.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-103366 has been found in WordPress.
Attackers can target a specific entry point like steps__reload_booking_form_summary_panel over the network to misuse the product.
Confidential information can be exposed externally. CVSS score: 7.5/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "WordPress CVE-2026-103366" on the vendor's site.
CVE-2026-103366 (WordPress) — CWE-639 / CVSS v3 7.5
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Attack surface: steps__reload_booking_form_summary_panel / steps__start
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-639) exists in WordPress. Attackers reach the vulnerable code path via steps__reload_booking_form_summary_panel without authentication.
Check the vendor advisory for the affected versions of WordPress. Attack surface: steps__reload_booking_form_summary_panel / steps__start.
Severity: High (CVSS 7.5/10). Confidential information can be exposed externally.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで WordPress を使っているサービスとバージョンを洗い出す。
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2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。