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CVE-2026-77144— Broken Access Control in extension "Events 2" (events2)

Quick assessment

Affected
TYPO3 Extension "Events 2"
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.

TYPO3 Events 2是TYPO3组织的一款用于 TYPO3 CMS 的活动管理扩展插件。 TYPO3 Events 2 10.0.0版本至10.2.12之前版本存在输入验证错误漏洞，该漏洞源于权限检查不充分，可能允许具有前端事件管理访问权限的用户创建归属于其他组织者的事件。

CVSS 7.1 · High EPSS 0.41% · P34

Possible ATT&CK Techniques 1 AI

T1078.004 · Cloud Accounts

Affected Version Matrix 3

VendorProduct Version RangeStatus
TYPO3 Extension "Events 2" 10.0.0< 10.2.12 affected
9.0.0< 9.4.2 affected
< 8.6.3 affected
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I. Basic Information for CVE-2026-77144

Vulnerability Information
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Vulnerability Title
Broken Access Control in extension "Events 2" (events2)
Source: CVE Program / CVE List V5
Vulnerability Description
The frontend management plugin attributed a newly created event to the submitting user's organizer record only when the request supplied no organizer of its own. The accompanying permission check confirmed only that the submitting user held any organizer role. A user with frontend event management access could therefore create an event that is attributed to another organizer.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-915
Source: CVE Program / CVE List V5
Vulnerability Title
TYPO3 Events 2 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TYPO3 Events 2是TYPO3组织的一款用于 TYPO3 CMS 的活动管理扩展插件。 TYPO3 Events 2 10.0.0版本至10.2.12之前版本存在输入验证错误漏洞，该漏洞源于权限检查不充分，可能允许具有前端事件管理访问权限的用户创建归属于其他组织者的事件。
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
TYPO3 Extension "Events 2" 10.0.0 ~ 10.2.12 -

II. Public POCs for CVE-2026-77144

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III. Intelligence Information for CVE-2026-77144

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Vendor Advisories for CVE-2026-77144 (1)

Same Patch Batch · TYPO3 · 2026-08-25 · 24 CVEs total

CVE-2026-77136 9.5 CRITICAL Server-Side Template Injection in extension "powermail" (powermail)
CVE-2026-77138 9.3 CRITICAL Remote Code Execution in extension "HTML5 Video Player vs. Powermail" (html5videoplayer_po
CVE-2026-77142 8.8 HIGH Broken Access Control in extension "Industry Directory" (yellowpages2)
CVE-2026-77143 8.8 HIGH Broken Access Control in extension "Forum" (pforum)
CVE-2026-77141 8.8 HIGH Broken Access Control in extension "Club Directory" (clubdirectory)
CVE-2026-77140 8.7 HIGH Broken Access Control in extension "Telephone Directory" (telephonedirectory)
CVE-2026-77146 8.3 HIGH Broken Access Control in extension "femanager" (femanager)
CVE-2026-77134 8.3 HIGH Broken Access Control in extension "femanager" (femanager)
CVE-2026-77135 8.2 HIGH Information Disclosure in extension "femanager" (femanager)
CVE-2026-77129 7.7 HIGH Server-Side Template Injection in extension "Event management and registration" (sf_event_
CVE-2026-77137 7.7 HIGH SQL Injection in extension "Forms Export" (frp_form_answers)
CVE-2026-56095 7.7 HIGH Insecure Deserialization in extension "Apache Solr for TYPO3 - Enterprise Search" (solr)
CVE-2026-56092 7.6 HIGH Broken Access Control in extension "Apache Solr for TYPO3 - Enterprise Search" (solr)
CVE-2026-77145 7.1 HIGH Broken Access Control in extension "Events 2" (events2)
CVE-2026-56094 6.3 MEDIUM Information Disclosure in extension "Apache Solr for TYPO3 - Enterprise Search" (solr)
CVE-2026-56093 6.3 MEDIUM Broken Access Control in extension "Apache Solr for TYPO3 - Enterprise Search" (solr)
CVE-2026-56096 6.3 MEDIUM Information Disclosure in extension "Apache Solr for TYPO3 - Enterprise Search" (solr)
CVE-2026-77128 6.3 MEDIUM Broken Access Control in extension "Event management and registration" (sf_event_mgt)
CVE-2026-77139 6.0 MEDIUM Path Traversal in extension "Mask" (mask)
CVE-2026-77127 6.0 MEDIUM Information Disclosure in extension "Modules" (modules)

Showing top 20 of 24 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Extension "Events 2"
Same vendor: TYPO3
Same weakness: CWE-915

V. Comments for CVE-2026-77144

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