CVE-2026-0817— CampaignEvents API missing authorization exposes meeting and chat URLs
Quick assessment
Affected
Wikimedia Foundation MediaWiki - CampaignEvents extension
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.
MediaWiki - CampaignEvents是MediaWiki开源的一个社区活动插件。 MediaWiki - CampaignEvents 1.45版本、1.44版本、1.43版本和1.39版本存在安全漏洞，该漏洞源于缺少授权，可能导致权限滥用。
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2026-0817
Vulnerability Information
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Vulnerability Title
CampaignEvents API missing authorization exposes meeting and chat URLs
Source: CVE Program / CVE List V5
Vulnerability Description
Missing Authorization vulnerability in Wikimedia Foundation MediaWiki - CampaignEvents extension allows Privilege Abuse.This issue affects MediaWiki - CampaignEvents extension: 1.45, 1.44, 1.43, 1.39.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
MediaWiki - CampaignEvents 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MediaWiki - CampaignEvents是MediaWiki开源的一个社区活动插件。 MediaWiki - CampaignEvents 1.45版本、1.44版本、1.43版本和1.39版本存在安全漏洞，该漏洞源于缺少授权，可能导致权限滥用。
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 |
|---|---|---|---|---|
| Wikimedia Foundation | MediaWiki - CampaignEvents extension | 1.45 | - |
|
II. Public POCs for CVE-2026-0817
| # | POC Description | Source Link | Shenlong Link |
|---|
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V. Comments for CVE-2026-0817
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