Input validation error in Flag attendance field - CVE-2026-55809
Published: June 18, 2026
Vulnerability identifier: #VU134779
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-55809
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Anas_maw
Affected software:
Flag attendance field
Flag attendance field
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to the PHP object injection issue in flag_attendance_field. A remote user can execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2026-55809
Install updates from vendor's website.