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CVE-2026-48081— OpenReception vulnerable to stored click-triggered XSS via javascript: tenant links rendered into patient-facing footer

Quick assessment

Affected
open-reception appointment-booking-software
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

open-reception appointment-booking-software是open-reception组织的一款预约安排软件。 open-reception appointment-booking-software 1.0.2之前版本存在跨站脚本漏洞，该漏洞源于缺少URL协议过滤，允许租户管理员存储javascript: URL并渲染为链接，可能导致患者点击后执行恶意JavaScript，读取或修改客户端加密前的明文数据。

CVSS 8.1 · High EPSS 0.24% · P14

Affected Version Matrix 1

VendorProduct Version RangeStatus
open-reception appointment-booking-software < 1.0.2 affected
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I. Basic Information for CVE-2026-48081

Vulnerability Information
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Vulnerability Title
OpenReception vulnerable to stored click-triggered XSS via javascript: tenant links rendered into patient-facing footer
Source: CVE Program / CVE List V5
Vulnerability Description
OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. Prior to version 1.0.2, a TENANT_ADMIN can store `javascript:` URLs in the tenant `links` configuration (`website`, `imprint`, `privacyStatement`). These values are returned to the patient-facing landing page via `/api/public`, hydrated into the SvelteKit Button component, and rendered as `<a href="javascript:...">` elements without URL-scheme filtering. A patient who clicks any such link executes the attacker's JavaScript inside the patient browser origin, where patient form data is read before client-side encryption is applied. This breaks the project's central trust claim that the server is an untrusted relay and that administrators cannot read patient data. Patient-side encryption happens after form input, so JavaScript executing in the patient origin can read or alter the plaintext before encryption is performed. Version 1.0.2 fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
open-reception appointment-booking-software 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
open-reception appointment-booking-software是open-reception组织的一款预约安排软件。 open-reception appointment-booking-software 1.0.2之前版本存在跨站脚本漏洞，该漏洞源于缺少URL协议过滤，允许租户管理员存储javascript: URL并渲染为链接，可能导致患者点击后执行恶意JavaScript，读取或修改客户端加密前的明文数据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
open-reception appointment-booking-software < 1.0.2 -

II. Public POCs for CVE-2026-48081

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 8327 chars
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III. Intelligence Information for CVE-2026-48081

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Patches & Fixes for CVE-2026-48081 (1)

Vendor Advisories for CVE-2026-48081 (1)

Same Patch Batch · open-reception · 2026-08-06 · 16 CVEs total

CVE-2026-48086 9.9 CRITICAL OpenReception: Tenant admin self-promotes to GLOBAL_ADMIN
CVE-2026-48087 9.8 CRITICAL OpenReception: WebAuthn passkey injection allows account takeover
CVE-2026-48085 9.8 CRITICAL OpenReception has unauthenticated GLOBAL_ADMIN account creation post-bootstrap
CVE-2026-48088 9.4 CRITICAL OpenReception vulnerable to unauthenticated staff crypto poisoning that breaks E2E recipie
CVE-2026-48080 8.0 HIGH OpenReception's tenant detail endpoint discloses live PostgreSQL connection string, superu
CVE-2026-48084 7.4 HIGH OpenReception doesn't rate limit passphrase login attempts
CVE-2026-48079 7.4 HIGH OpenReception's logout page clears local access_token before server-side revocation, leavi
CVE-2026-48076 6.5 MEDIUM OpenReception's bootstrap booking flow allows unauthenticated booking on isPublic=false ch
CVE-2026-48083 6.5 MEDIUM OpenReception: Unauthenticated POST /api/log accepts arbitrary content with CRLF injection
CVE-2026-48075 6.5 MEDIUM OpenReception's unauthenticated add-to-tunnel endpoint accepts arbitrary appointment injec
CVE-2026-48071 5.8 MEDIUM OpenReception's client PIN challenge throttle is keyed by emailHash only, allowing cross-t
CVE-2026-48078 5.3 MEDIUM OpenReception's schedule endpoint discloses isPublic=false channels and slot availability
CVE-2026-48077 5.3 MEDIUM OpenReception: GET appointment by ID returns full appointment record without authorization
CVE-2026-48082 3.7 LOW OpenReception's bootstrap challenge proof-of-work difficulty hardcoded to 16 bits, which e
CVE-2026-48074 2.7 LOW OpenReception: Staff deletion removes pending invites cross-tenant by email match

IV. Related Vulnerabilities

Same product: appointment-booking-software
Same vendor: open-reception
Same weakness: CWE-79

V. Comments for CVE-2026-48081

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