CVE-2026-5356: The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to Improper Input Validation in all versions up to, and including, 5.4.0. Thi
The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to Improper Input Validation in all versions up to, and including, 5.4.0. This is due to the plugin's Stripe Connect payment processor accepting a client-supplied PaymentIntent ID. This makes it possible for unauthenticated attackers to pay an arbitrary amount by supplying a previously succeeded PaymentIntent token.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-5356
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-53560.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-5356 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for LatePoint
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- mediumCVE-2026-11398: The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vu…nvd · 2026-07-03
- mediumCVE-2026-12657: The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vu…nvd · 2026-07-02
- highCVE-2026-13228: The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vu…nvd · 2026-07-01
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