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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-8727— Remote Code Execution in extension "Site Crawler" (crawler)

Quick assessment

Affected
TYPO3 Extension "Site Crawler"
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 Extension Site Crawler是TYPO3开源的一个TYPO3站点爬取与索引管理扩展。 TYPO3 Extension Site Crawler存在代码问题漏洞，该漏洞源于直接反序列化X-T3Crawler-Meta响应头，可能导致远程代码执行。

AI Predicted 9.8 Difficulty: Moderate EPSS 0.50% · P41

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
TYPO3 Extension "Site Crawler" 12.0.0< 12.0.11 affected
< 11.0.13 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-8727

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Remote Code Execution in extension "Site Crawler" (crawler)
Source: CVE Program / CVE List V5
Vulnerability Description
The Crawler extension passes the X-T3Crawler-Meta response header from crawled URLs directly to PHP's unserialize(). An attacker controlling a crawled endpoint can inject arbitrary serialized PHP objects, leading to Remote Code Execution on the TYPO3 server. Exploitation requires administrative privileges to configure a crawler-enabled page and trigger the crawl via a Scheduler task.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
TYPO3 Extension Site Crawler 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TYPO3 Extension Site Crawler是TYPO3开源的一个TYPO3站点爬取与索引管理扩展。 TYPO3 Extension Site Crawler存在代码问题漏洞，该漏洞源于直接反序列化X-T3Crawler-Meta响应头，可能导致远程代码执行。
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 "Site Crawler" 12.0.0 ~ 12.0.11 -

II. Public POCs for CVE-2026-8727

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-8727

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-8727 (1)

Same Patch Batch · TYPO3 · 2026-05-19 · 8 CVEs total

CVE-2026-46722 XML External Entity Injection in extension "Faceted Search" (ke_search)
CVE-2026-46725 Remote Code Execution in extension "Content Element Selector" (ceselector)
CVE-2026-46721 Broken Access Control in extension "Frontend User Registration" (sf_register)
CVE-2026-46723 Information Disclosure in extension "Faceted Search" (ke_search)
CVE-2026-46724 Path Traversal in extension "Faceted Search" (ke_search)
CVE-2026-8726 SQL Injection in extension "News system" (news)
CVE-2026-8827 SQL Injection in extension "Address List" (tt_address)

IV. Related Vulnerabilities

Same vendor: TYPO3
Same weakness: CWE-502

V. Comments for CVE-2026-8727

No comments yet

Leave a comment