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CVE-2026-57827— Joomla Extension - rsjoomla.com - Unauthenticated file upload in RSFiles component < 1.17.12

Quick assessment

Affected
rsjoomla.com rsjoomla.com RSFiles extension for Joomla
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

RSJoomla! RSFiles是RSJoomla!公司的一款文件管理扩展。 RSJoomla RSFiles 1.0版本至1.17.11版本存在任意文件上传漏洞，该漏洞源于未经验证的任意文件上传，允许上传可执行文件，导致远程代码执行。

CVSS 10.0 · Critical EPSS 2.33% · P83

Public Exploits 1

Nuclei · 1 CVE-2026-57827.yaml [template]

Affected Version Matrix 1

VendorProduct Version RangeStatus
rsjoomla.com rsjoomla.com RSFiles extension for Joomla 1.0-1.17.11 affected
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I. Basic Information for CVE-2026-57827

Vulnerability Information
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Vulnerability Title
Joomla Extension - rsjoomla.com - Unauthenticated file upload in RSFiles component < 1.17.12
Source: CVE Program / CVE List V5
Vulnerability Description
Joomla Extension - rsjoomla.com - Unauthenticated file upload in RSFiles component < 1.17.12 - The Joomla extension RSFiles is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/AU:Y/U:Red
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
RSJoomla RSFiles 任意文件上传漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RSJoomla! RSFiles是RSJoomla!公司的一款文件管理扩展。 RSJoomla RSFiles 1.0版本至1.17.11版本存在任意文件上传漏洞，该漏洞源于未经验证的任意文件上传，允许上传可执行文件，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)

Shenlong Deep Dive — AI Deep Analysis

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Affected Products

Vendor Product Affected Versions CPE Subscribe
rsjoomla.com rsjoomla.com RSFiles extension for Joomla 1.0-1.17.11 -

II. Public POCs for CVE-2026-57827

# POC Description Source Link Shenlong Link
1 RSFiles! (com_rsfiles) for Joomla < 1.17.12 allows unauthenticated arbitrary file upload via the rsfiles.upload task. The write method performs no authentication, CSRF token, or file extension checks, allowing upload of executable PHP files to the web-accessible downloads/ directory. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-57827.yaml POC Details
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default-local-qwen3.6 · 13764 chars
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III. Intelligence Information for CVE-2026-57827

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Security Blog Posts for CVE-2026-57827 (1)

Vendor Pages for CVE-2026-57827 (1)

IV. Related Vulnerabilities

Same vendor: rsjoomla.com
Same weakness: CWE-434

V. Comments for CVE-2026-57827

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