High severity · published Aug 6, 2026
CVE-2026-48079
OpenReception's logout page clears local access_token before server-side revocation, leaving duplicated tokens valid until expiry
7.4
CVSS
0.5%
EPSS
No
On KEV
Description
OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. Prior to version 1.0.2, when a user navigates to the `/logout` page, the page's server-side load handler deletes the `access_token` cookie before calling `/api/auth/logout` via an internal `event.fetch()`. The internal fetch consequently runs without the auth cookie, so `apiAuthHandle` rejects it, the logout handler never executes, and `SessionService.revokeSession()` is never called for the current session. The DB session row remains valid until its natural expiry (one week by default). The user sees a successful logout (cookie gone, UI returns to login), but any party still holding a copy of the now-deleted access token can continue making authenticated API calls until the session naturally expires. The root cause is a simple ordering mistake. The same auth subsystem implements the correct order in `/api/auth/logout`: revoke the current DB session first, then delete the cookie. The page-level wrapper does the opposite. Version 1.0.2 initiates server-side logout before removing authentication cookies and first appears in version 1.0.2. Version 2.0.0 later replaces this with a race-free client-side logout flow.
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)0.5% · higher than 43% 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
< 1.0.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-48079
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-48079
github.com
https://github.com/open-reception/appointment-booking-software/commit/2419f9e87a8abad72f31b1fedeb80c758b30322e
github.com
https://github.com/open-reception/appointment-booking-software/commit/f833dbf50059ff7d4ea42ce7bbb3a5cdcf7a6929
github.com
https://github.com/open-reception/appointment-booking-software/security/advisories/GHSA-hrhm-m2hm-7cjh
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