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VulnerabilityPublished

CVE-2026-48087: open-reception appointment-booking-software · Improper Authentication

Affects open-reception appointment-booking-softwareSource CVE Database V5

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Not known to be exploited · CVSS 9.8 Critical : upgrade to 1.0.2 as a priority.

Data as of 5 Nov 2026, 00:01 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 47% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.0.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 5 Nov 2026.

What to do

Upgrade appointment-booking-software and open-reception/appointment-booking-software to 1.0.2.

Affected software

ProductAffectedFixed in
open-receptionappointment-booking-softwareAffected
  • <1.0.2
Fixed in
  • 1.0.2
GitHubopen-reception/appointment-booking-softwarepkg:github/open-reception/appointment-booking-softwareOther threatsAffected
  • <1.0.2
Fixed in
  • 1.0.2

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Version 1.0.2 of OpenReception's appointment booking software fixes this vulnerability by properly validating that the userId in the registration URL matches the email associated with the WebAuthn challenge and registration cookie. Users and administrators should upgrade to version 1.0.2 or later to remediate this issue. Patch status is confirmed fixed in 1.0.2. Until upgrading, assess exposure of user IDs and restrict access to any endpoints that might leak userId information.

Description

CVE-2026-48087 is a critical improper authentication vulnerability in OpenReception's appointment booking software prior to version 1.0.2. The flaw allows an unauthenticated attacker to register a WebAuthn passkey credential under a victim's user ID by exploiting insufficient validation between the userId in the URL and the email associated with the registration cookie. This enables the attacker to impersonate the victim and gain unauthorized access. The issue is fixed in version 1.0.2.

References

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