CVE-2026-54460: open-reception appointment-booking-software · Missing Authentication
Affects open-reception appointment-booking-softwareSource CVE Database V5
Not known to be exploited · CVSS 9.8 Critical : upgrade to 1.1.1 as a priority.
Data as of 1 Nov 2026, 22:58 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 53% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.1.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 17 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 1 Nov 2026.
What to do
Upgrade appointment-booking-software and open-reception/appointment-booking-software to 1.1.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| open-receptionappointment-booking-software | Affected
| Fixed in
|
GitHubopen-reception/appointment-booking-softwarepkg:github/open-reception/appointment-booking-softwareOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
This vulnerability is fixed in OpenReception appointment booking software version 1.1.1. Users should upgrade to version 1.1.1 or later to remediate this issue. No other mitigation is required as the fix addresses the authentication bypass directly.
Description
OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. Prior to 1.1.1, POST /api/auth/passkeys accepts a request-body userId and attacker-supplied passkey without an authenticated session, does not call WebAuthnService.verifyRegistration, and does not bind enrollment to locals.user.id. An unauthenticated attacker who knows the public tenant ID and the target staff email can use the public booking bootstrap and GET /api/tenants/[id]/appointments/staff-public-keys to obtain candidate userId values. The attacker first causes UserService.addAdditionalPasskey to store a controlled public key for a candidate userId, then attempts login with the target email; the login check compares verificationResult.userId with the email-resolved account and reveals whether the injected credential belongs to that target. Repeating this injection-before-login sequence identifies the matching userId, and the normal login endpoint accepts the attacker's assertion for the stored key and creates a STAFF session. The session can expose tenant data and reveal TENANT_ADMIN identifiers for further takeover; GLOBAL_ADMIN accounts are not reachable through this tenant-scoped path. A hijacked TENANT_ADMIN can modify or delete tenant resources and key shares, potentially making appointment data permanently undecryptable and taking booking services offline. This issue is fixed in version 1.1.1.
References
- github.com/open-reception/appointment-booking-software/security/advisories/GHSA-g233-m625-m3pc (opens in a new tab)
- github.com/open-reception/appointment-booking-software/commit/5d29d9c1964ef7541a6e96d04d946c22f76eea00 (opens in a new tab)
- github.com/open-reception/appointment-booking-software/commit/93040884b783573dbf161723e508676327fdf0bf (opens in a new tab)
- github.com/open-reception/appointment-booking-software/releases/tag/v1.1.1 (opens in a new tab)
- github.com/user-attachments/files/28600800/MS-OPENRECEPTION-cc76da-poc.zip (opens in a new tab)