EUVD-2026-18215
GHSA-727f-vwj6-7jvh
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
5DescriptionCVE.org
A vulnerability was found in SourceCodester/mayuri_k Best Courier Management System 1.0. Affected by this issue is some unknown functionality of the file /ajax.php?action=delete_user of the component User Delete Handler. Performing a manipulation of the argument ID results in improper access controls. The attack may be initiated remotely. The exploit has been made public and could be used.
AnalysisAI
Improper access controls in SourceCodester Best Courier Management System 1.0 allow unauthenticated remote attackers to delete users by manipulating the ID parameter in the /ajax.php?action=delete_user endpoint, bypassing authentication requirements. The vulnerability has publicly available exploit code and impacts all versions of the affected software with a CVSS 6.9 score reflecting moderate integrity impact through an easily exploitable network vector.
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Vulnerability AssessmentAI
| Risk Assessment | The CVSS 6.9 score reflects a moderate-risk vulnerability with an unauthenticated network attack vector (AV:N/AC:L/PR:N), indicating low barriers to exploitation. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An unauthenticated attacker makes an HTTP request to the vulnerable /ajax.php?action=delete_user endpoint with a crafted ID parameter (e.g., incrementing integers to discover valid user IDs) and successfully deletes arbitrary user accounts without providing any credentials. Because the application fails to verify authorization, the attacker can systematically remove administrative accounts, support staff, or other critical users, causing service disruption. … |
| Remediation | Immediately upgrade or patch the Best Courier Management System to a version that implements proper access control validation on the user delete handler. … Detailed patch versions, workarounds, and compensating controls in full report. |
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