CVE-2026-86666 Details
Description
A security flaw has been discovered in aircheng-org iWebShop-5 up to 5.15. Impacted is the function upload_json/uploadFile of the file controllers/pic.php. The manipulation results in unrestricted upload. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
A vulnerability allowing unauthenticated unrestricted file uploads has been identified in aircheng-org iWebShop-5 versions through 5.15. The issue resides in the picture controller's upload endpoints, which lack authentication and permit various dangerous file types. Notably, image malware scanning can be circumvented using PHP short tags.
It is recommended to require authentication for all upload actions, restrict allowed file types to only those necessary, and store uploaded files outside the web root or serve them as non-executable static content. Additionally, the 'checkHex' function should be fixed to properly scan for PHP short tags and null bytes.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 8, 2026CISA-ADP
Assessed Sep 10, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/aircheng-org/iWebShop-5/issues/3 | CISA-ADP | ExploitIssue TrackingTechnical DescriptionVendor |
| https://github.com/aircheng-org/iWebShop-5/ | [email protected] | ProductVendor |
| https://github.com/aircheng-org/iWebShop-5/issues/3 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://vuldb.com/cve/CVE-2026-86666 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/908924 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/399757 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/399757/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-284 | Improper Access Control | [email protected] |
| CWE-434 | Unrestricted Upload of File with Dangerous Type | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| aircheng-org iWebShop-5 | <= 5.15 |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 10, 2026 | CVE Modified | CISA-ADP |
| Sep 8, 2026 | New CVE Received | [email protected] |