Authenticated script execution via unescaped PHP_SELF
Published Apr 6, 2026 · Updated Apr 6, 2026
Reflected XSS in Cyber-III Student Management System at commit 1a938fa allows remote authenticated users to execute script via a crafted URL. In admin/Add notice/batch-notice.php, the form action writes the attacker-controlled $_SERVER['PHP_SELF'] value into HTML without attribute encoding, allowing path content to close the attribute and inject script. An administrator must open the crafted URL while authenticated; the injected script then runs in that administrator's browser and can act within the session.
Summary
What happened
Reflected XSS in Cyber-III Student Management System at commit 1a938fa allows remote authenticated users to execute script via a crafted URL. In admin/Add notice/batch-notice.php, the form action writes the attacker-controlled $_SERVER['PHP_SELF'] value into HTML without attribute encoding, allowing path content to close the attribute and inject script. An administrator must open the crafted URL while authenticated; the injected script then runs in that administrator's browser and can act within the session.
The record
- CVE
- CVE-2026-5644
- Published
- Apr 6, 2026
- Updated
- Apr 6, 2026
- Vendor
- Cyber-III
- Product
- Student Management System
- Classifications
- CWE-79, CWE-94, T1203
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Apr 6, 2026CVE publishedPublication date reported by the CVE source.
- Apr 6, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1a938fa61e9f735078e9b291d2e6215b4942af3f
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- GitHub issue 238 reflected XSS proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo