Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-77139— Path Traversal in extension "Mask" (mask)

Quick assessment

Affected
TYPO3 Extension "Mask"
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.

该扩展在使用客户端提供的模板元素键之前，未对其进行验证，而是直接将其用于构建保存和删除 Mask 模板文件时的文件路径。具有 Mask 模块访问权限的已认证后端用户可以提供包含路径遍历序列的键，从而在配置的模板目录之外创建或删除 .html 文件。

CVSS 6.0 · Medium EPSS 0.29% · P21

Affected Version Matrix 2

VendorProduct Version RangeStatus
TYPO3 Extension "Mask" 9.0.0< 9.0.11 affected
< 8.3.12 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-77139

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Path Traversal in extension "Mask" (mask)
Source: CVE Program / CVE List V5
Vulnerability Description
The extension fails to validate a client-supplied template element key before using it to build file paths for saving and deleting Mask template files. An authenticated backend user with access to the Mask module can supply a key containing path traversal sequences to create or delete .html files outside the configured template directory.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
TYPO3 Extension "Mask" 9.0.0 ~ 9.0.11 -

II. Public POCs for CVE-2026-77139

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-77139

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-77139 (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-2026-77143 8.8 HIGH Broken Access Control in extension "Forum" (pforum)
CVE-2026-77142 8.8 HIGH Broken Access Control in extension "Industry Directory" (yellowpages2)
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-2026-77137 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-2026-77129 7.7 HIGH Server-Side Template Injection in extension "Event management and registration" (sf_event_
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-2026-77144 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-2026-77127 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 vendor: TYPO3
Same weakness: CWE-22

V. Comments for CVE-2026-77139

No comments yet

Leave a comment