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Online Makeup Store EUVDEUVD-2026-85710

| CVE-2026-96603 MEDIUM
Missing Authorization (CWE-862)
2026-09-23 VulDB GHSA-q27j-6wjr-hgqq
5.5
CVSS 4.0 · Vendor: VulDB
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Reach admin handler in functions.php
  2. Exploit
    Manipulate adminid parameter
  3. Execution
    Bypass confirm_user authorization check
  4. Impact
    Access privileged admin functionality

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization checks on every request
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires reaching the Admin Handler code path in functions.php that calls confirm_logged_in/confirm_user and supplying a crafted adminid argument; because the authorization check is missing, no valid session or credentials are needed (PR:N/UI:N). The only meaningful limiting factor is deployment reach: the product is a niche, single-developer PHP web application with no version metadata (rolling release), so exploitation is limited to the small number of instances actually running this specific codebase rather than any special configuration prerequisite.

Impact

This is a classic low-impact, high-volume VulDB disclosure against an obscure GitHub project, and the signals should be read with that context. The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N) indicates trivial remote, unauthenticated exploitation, and the E:P (Proof-of-Concept) exploit-maturity flag aligns with the publicly available GitHub write-up. However, all impact metrics are only Low (VC:L/VI:L/VA:L), yielding a modest 5.5 base score. There is no EPSS score, no CISA KEV listing, and no evidence of active exploitation - only a POC exists, which is a distinct signal from in-the-wild abuse. No SSVC decision was supplied. The realistic priority is LOW: while the flaw itself (missing authorization via a manipulable adminid parameter granting admin-handler access) is genuine and easy to trigger, the affected product ('online-makeup-store' by GitHub user Abdurrab5) is a hobby/student-grade PHP application with negligible production footprint, so widespread exploitation is implausible. Note also a labeling tension: the CWE is CWE-862 (Missing Authorization) and the referenced write-up is titled 'broken access control', yet the tag says 'Authentication Bypass' - these are related but distinct, and the true nature is an authorization/access-control flaw, not credential/auth bypass.

Exploit ScenarioDerived

A remote attacker requests an admin-handler endpoint in functions.php and supplies or manipulates the adminid argument; because confirm_logged_in/confirm_user fails to enforce authorization, the request is served as if privileged. A public exploit write-up exists on GitHub (yashkeral/cve-writeups), and given AV:N/AC:L/PR:N the action requires no authentication, credentials, or user interaction.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 23, 2026

Missing authorization in the Abdurrab5 Online Makeup Store PHP application allows unauthenticated remote attackers to reach admin-only functionality by supplying a crafted adminid argument to the confirm_logged_in/confirm_user functions in functions.php, enabling low-impact confidentiality, integrity, and availability effects. Publicly available exploit code exists-including a GitHub write-up-but no CISA KEV confirmation or EPSS data is provided, so active exploitation is not confirmed. The vendor uses a rolling release with no version metadata, meaning all deployments of this codebase should be considered potentially affected, though the project's niche, single-developer nature limits its real-world attack surface.

RemediationAI

No vendor-released patch has been identified at the time of analysis, and because the project is a rolling release without version metadata, there is no fixed version to upgrade to. Primary remediation is to modify functions.php so that confirm_logged_in and confirm_user perform a server-side authorization check-verifying an authenticated session with an admin role-before acting on the adminid parameter, and then redeploy the corrected code. As a compensating control, restrict access to the Admin Handler endpoint at the web server or reverse proxy layer using an IP allowlist or HTTP authentication; this may break legitimate remote admin access if not scoped correctly. Alternatively, if the admin functionality is unused, remove or disable the affected code path entirely. A WAF rule that blocks requests with administrator-like adminid values in the vulnerable parameter can provide temporary protection but should not replace the code fix. Monitor the VulDB advisory (https://vuldb.com/vuln/408969) for any vendor update.

Affected VersionsENISA

online-makeup-store f804fe3ef5cf3570ced0fa34fb2de492a1306345
online-makeup-store 336a4b09e5c840bdfe6dfde6616add0b20e4b4ee
online-makeup-store c3ca96769c008a8a1518c8f9adbc7c8b52d83480

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This is a PHP web application (Online Makeup Store) implementing an admin handler in functions.php. The root cause is CWE-862 (Missing Authorization): the confirm_logged_in and confirm_user functions trust the adminid parameter without verifying that the requester holds a valid admin session or role, so an attacker can manipulate adminid to bypass access controls. The CPE cpe:2.3:a:abdurrab5:online-makeup-store:*:*:*:*:*:*:*:* indicates the affected product family with no version bounds because the project follows a rolling release model. The vulnerability is remotely reachable (AV:N) with low complexity and no privileges (PR:N) or user interaction (UI:N), which aligns with the independent assessment of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L. The underlying issue is a classic broken access control pattern where authentication state is inferred from a client-supplied identifier rather than validated server-side.

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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
vuln.today AI 7.3 HIGH

Remote, no auth or interaction for a missing-authorization flaw (AV:N/AC:L/PR:N/UI:N); impact kept Low across C/I/A consistent with the vendor's VC:L/VI:L/VA:L assessment.

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
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vulnerable system: Confidentiality
Low
Vulnerable system: Integrity
Low
Vulnerable system: Availability
Low
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

2
CVSS changed
Sep 23, 2026 - 22:22 NVD
6.9 (MEDIUM) 5.5 (MEDIUM)
CVE Published
Sep 23, 2026 - 21:45 cve.org
MEDIUM 5.5

DescriptionCVE.org

A vulnerability has been found in Abdurrab5 online-makeup-store. Affected is the function confirm_logged_in/confirm_user of the file functions.php of the component Admin Handler. Such manipulation of the argument adminid leads to missing authorization. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The vendor was contacted early about this disclosure.

Threat Intelligence Overview

EPSS Score
0.3%
Top 81% exploitable
Prevalence
Rare
obscure single-developer GitHub PHP app, no enterprise footprint
Exploit
POC
Public exploit code exists
Social Media
1
Sightings
Data Quality
7 sources
Confidence: High
EUVD NVD CVE.org EPSS Vulnrichment CIRCL GitHub VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC Yes
EPSS 0.3%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
Poc
System Exposure· derived
Open
Automatable
Yes
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

48
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +28
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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