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CVE-2026-48909— Joomla Extension - joomshaper.com - PHP Object injection in SP LMS extension for Joomla < 4.1.4

Quick assessment

Affected
joomshaper.net SP LMS 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.

JoomShaper SP LMS是JoomShaper公司的一个在线学习管理系统。 JoomShaper SP LMS 存在反序列化漏洞，该漏洞源于反序列化用户控制的Cookie数据时未进行验证，可能导致未经身份验证的远程攻击者在服务器上执行任意代码。

AI Predicted 9.8 Difficulty: Easy EPSS 4.94% · P92

Public Exploits 1

ExploitDB · 1 EDB-52617 [webapps]

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
joomshaper.net SP LMS extension for Joomla 1.0.0-4.1.3 affected
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I. Basic Information for CVE-2026-48909

Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Joomla Extension - joomshaper.com - PHP Object injection in SP LMS extension for Joomla < 4.1.4
Source: CVE Program / CVE List V5
Vulnerability Description
SP LMS (com_splms) < 4.1.4 by JoomShaper deserializes user-controlled cookie data without validation, enabling an unauthenticated remote attacker to execute arbitrary code on the server.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
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
JoomShaper SP LMS 反序列化漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
JoomShaper SP LMS是JoomShaper公司的一个在线学习管理系统。 JoomShaper SP LMS 存在反序列化漏洞，该漏洞源于反序列化用户控制的Cookie数据时未进行验证，可能导致未经身份验证的远程攻击者在服务器上执行任意代码。
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
joomshaper.net SP LMS extension for Joomla 1.0.0-4.1.3 -

II. Public POCs for CVE-2026-48909

# POC Description Source Link Shenlong Link
1 SP LMS (com_splms) < 4.1.4 by JoomShaper deserializes user-controlled cookie data without validation, enabling an unauthenticated remote attacker to execute arbitrary code on the server. https://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2026/CVE-2026-48909.yaml POC Details
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III. Intelligence Information for CVE-2026-48909

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Vendor Pages for CVE-2026-48909 (1)

IV. Related Vulnerabilities

Same vendor: joomshaper.net
Same weakness: CWE-502

V. Comments for CVE-2026-48909

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