PT-2025-39078 · Inilabs · Sms Express+1
Michael Kim
+1
·
Published
2025-09-22
·
Updated
2025-10-11
·
CVE-2025-57205
CVSS v3.1
5.4
Medium
| Vector | AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Name of the Vulnerable Software and Affected Versions
iNiLabs School Express (SMS Express) version 6.2
Description
iNiLabs School Express (SMS Express) 6.2 is susceptible to a Stored Cross-Site Scripting (XSS) issue within its content-management features, accessible to authenticated administrator users. The issue is present in parameters submitted via POST requests to the
/posts/edit/{id} endpoint, and similar editors for Notices and Pages. Insufficient input sanitization and output encoding allow attackers to inject HTML/JS payloads. These payloads are saved and subsequently rendered without proper sanitization, leading to JavaScript execution in other users' browsers when they access the affected content. An authenticated attacker can execute arbitrary JavaScript in the context of another user, potentially leading to session hijacking, privilege escalation, data exfiltration, or administrative account takeover. The application lacks a restrictive Content Security Policy (CSP) or adequate filtering mechanisms to prevent these attacks.Recommendations
Update to a newer version that contains a fix for this vulnerability.
Exploit
Fix
LPE
XSS
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Weakness Enumeration
Related Identifiers
Affected Products
Sms Express
Inilabs School Express