High severity · published Oct 23, 2026
CVE-2026-65824
OpenReception: invite confirmation token is replayable within its validity window and re-issues a registration-bootstrap cookie
New
7.4
CVSS
0.3%
EPSS
No
On KEV
Description
OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. Prior to version 2.2.1, an attacker who captures a pending invite token can replay it to obtain a passkey-registration credential and register their own passkey on the invited account, taking control of that account. For a staff or tenant-admin invite this yields access to the tenant context tied to that account. This issue has been patched in version 2.2.1.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AP
appointment-booking-software · open-reception
< 2.2.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-65824
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-65824
github.com
https://github.com/open-reception/appointment-booking-software/commit/da921eb9d36953276577c0a6deb9267bfec03622
github.com
https://github.com/open-reception/appointment-booking-software/releases/tag/v2.2.1
github.com
https://github.com/open-reception/appointment-booking-software/security/advisories/GHSA-hvcx-8476-rwv6
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