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CVE-2026-27579— CollabPlatform : CORS Misconfiguration Allows Arbitrary Origin With Credentials Leading to Authenticated Account Data Exposure

Quick assessment

Affected
karnop realtime-collaboration-platform
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.

CollabPlatform是Manav Mahesh Sanger个人开发者的一个实时协作平台。 CollabPlatform存在安全漏洞，该漏洞源于Appwrite项目CORS配置不当，允许任意来源的凭据请求，可能导致敏感用户账户信息泄露。

CVSS 7.4 · High EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1556 · Modify Authentication Process
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I. Basic Information for CVE-2026-27579

Vulnerability Information
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Vulnerability Title
CollabPlatform : CORS Misconfiguration Allows Arbitrary Origin With Credentials Leading to Authenticated Account Data Exposure
Source: CVE Program / CVE List V5
Vulnerability Description
CollabPlatform is a full-stack, real-time doc collaboration platform. In all versions of CollabPlatform, the Appwrite project used by the application is misconfigured to allow arbitrary origins in CORS responses while also permitting credentialed requests. An attacker-controlled domain can issue authenticated cross-origin requests and read sensitive user account information, including email address, account identifiers, and MFA status. The issue did not have a fix at the time of publication.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
源验证错误
Source: CVE Program / CVE List V5
Vulnerability Title
CollabPlatform 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CollabPlatform是Manav Mahesh Sanger个人开发者的一个实时协作平台。 CollabPlatform存在安全漏洞，该漏洞源于Appwrite项目CORS配置不当，允许任意来源的凭据请求，可能导致敏感用户账户信息泄露。
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
karnop realtime-collaboration-platform <= master -

II. Public POCs for CVE-2026-27579

# POC Description Source Link Shenlong Link
1 None https://github.com/mbanyamer/CVE-2026-27579-CollabPlatform-Appwrite-CORS-Misconfiguration POC Details
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III. Intelligence Information for CVE-2026-27579

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Vendor Advisories for CVE-2026-27579 (1)

IV. Related Vulnerabilities

Same vendor: karnop
Same weakness: CWE-346

V. Comments for CVE-2026-27579

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