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CVE-2026-4982— Unauthorized access to chat contents

Quick assessment

Affected
pretix Venueless
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

venueless是venueless开源的一个在线活动平台。 Venueless存在安全漏洞，该漏洞源于报告功能存在缺陷，可能导致拥有update world权限的用户泄露同一服务器上其他世界的聊天消息。

AI Predicted 5.9 Difficulty: Moderate EPSS 0.38% · P30

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-4982

Vulnerability Information
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Vulnerability Title
Unauthorized access to chat contents
Source: CVE Program / CVE List V5
Vulnerability Description
A user with permission "update world" in any Venueless world is able to exfiltrate chat messages from direct messages or channels in other worlds on the same server due to a bug in the reporting feature. The exploitability is limited by the fact that the attacker needs to know the internal channel UUID of the chat channel, which is unlikely to be obtained by an outside attacker, especially for direct messages.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
venueless 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
venueless是venueless开源的一个在线活动平台。 Venueless存在安全漏洞，该漏洞源于报告功能存在缺陷，可能导致拥有update world权限的用户泄露同一服务器上其他世界的聊天消息。
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
pretix Venueless 0.0.0 ~ 2026.3.27.e20083a -

II. Public POCs for CVE-2026-4982

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III. Intelligence Information for CVE-2026-4982

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IV. Related Vulnerabilities

Same product: Venueless
Same vendor: pretix
Same weakness: CWE-20

V. Comments for CVE-2026-4982

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