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iWebShop-5 EUVDEUVD-2026-73449

| CVE-2026-86669 MEDIUM
Improper Authentication (CWE-287)
2026-09-08 cna@vuldb.com GHSA-mcm8-h6h3-g8wf
PHP Authentication Bypass
5.5
CVSS 4.0 · Vendor: vuldb
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Severity by source

Vendor (vuldb) PRIMARY
5.5 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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
vuln.today AI
7.3 HIGH

Unauthenticated network-accessible login bypass grants partial seller-panel read/write/availability impact with no scope change beyond the application.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (vuldb).

CVSS VectorVendor: vuldb

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

1
Analysis Generated
Sep 08, 2026 - 22:24 vuln.today

DescriptionCVE.org

A vulnerability was detected in aircheng-org iWebShop-5 up to 5.15. This affects the function Login of the file controllers/systemseller.php. Performing a manipulation of the argument Name results in improper authentication. It is possible to initiate the attack remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

AnalysisAI

Authentication bypass in aircheng-org iWebShop-5 (all versions 5.0-5.15) allows unauthenticated remote attackers to access the seller management panel by manipulating the Name parameter in the Login function of controllers/systemseller.php. A public exploit exists (referenced via GitHub issue #6), and SSVC confirms automatable exploitation with partial technical impact. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation No special conditions are required beyond network access to the iWebShop-5 seller login endpoint. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 base score of 5.5 (AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L) reflects partial impact across all three impact dimensions with no prerequisites, consistent with an unauthenticated network-exploitable login bypass. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation No vendor-released patch has been identified at time of analysis; the project maintainer has not responded to the disclosure. … Detailed patch versions, workarounds, and compensating controls in full report.
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EUVD-2026-73449 vulnerability details – vuln.today
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