CVE-2026-8727— Remote Code Execution in extension "Site Crawler" (crawler)
Possible ATT&CK Techniques 1AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| TYPO3 | Extension "Site Crawler" | 12.0.0< 12.0.11 | affected |
< 11.0.13 | affected |
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I. Basic Information for CVE-2026-8727
Vulnerability Information
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Vulnerability Title
Remote Code Execution in extension "Site Crawler" (crawler)
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
可信数据的反序列化
Source: NVD (National Vulnerability Database)
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 POCPremium
No public POC found.
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- https://typo3.org/security/advisory/typo3-ext-sa-2026-008vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-8727
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
- CVE-2026-46725
Remote Code Execution in extension "Content Element Selector - CVE-2026-8827
SQL Injection in extension "Address List" (tt_address) - CVE-2026-46724
Path Traversal in extension "Faceted Search" (ke_search) - CVE-2026-46723
Information Disclosure in extension "Faceted Search" (ke_sea - CVE-2026-46722
XML External Entity Injection in extension "Faceted Search"
V. Comments for CVE-2026-8727
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