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miniOrange Joomla CVE-2026-78074

| EUVDEUVD-2026-68522 HIGH
Improper Access Control (CWE-284)
2026-08-31 Joomla GHSA-34gh-p34w-7wgq
Authentication Bypass Miniorange Oauth Client Free Extension For Joomla Joomshield By Miniorange Free Extension For Joomla Okta User Sync Bi Directional User Management Free Extension For Joomla Keycloak User Sync User Management Free Extension For Joomla Restrict Files Folders Media Access For Joomla Free Extension For Joomla Ldap Integration With Active Directory And Openldap Ntlm Kerberos Login Free Extension For Joomla Login With Keycloak Oauth Single Sign On Sso Login With Keycloak Free Extension For Joomla Saml Sso Login With Google Apps Free Extension For Joomla Saml Sp Single Sign On Login With Adfs Free Extension For Joomla Web3 Crypto Wallet Login Nft Token Gating Free Extension For Joomla Oauth Single Sign On Oidc Sso Login With Azure Ad Free Extension For Joomla Miniorange User Provisioning With Azure For Joomla Free Extension For Joomla Joomai Ai Assistant For Joomla Free Extension For Joomla Single Sign On For Educational Institutes Free Extension For Joomla Two Factor Authentication 2Fa For Joomla Free Extension For Joomla Otp Verification For Joomla Free Extension For Joomla Saml 2 0 Idp For Joomla Free Extension For Joomla Staff Employee Business Directory Search For Active Directory Free Extension For Joomla Saml Sso For Joomla Free Extension For Joomla Oauth Server For Joomla Free Extension For Joomla Scim User Provisioning For Joomla Free Extension For Joomla Custom Api For Joomla Free Extension For Joomla Import Export Users For Joomla Free Extension For Joomla
8.8
CVSS 4.0 · Vendor: Joomla
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Severity by source

Vendor (Joomla) PRIMARY
8.8 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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
9.1 CRITICAL

Network-reachable with no auth or interaction; integrity and availability are both high from arbitrary extension removal; no confidentiality loss and scope unchanged.

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

Primary rating from Vendor (Joomla).

CVSS VectorVendor: Joomla

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

Lifecycle Timeline

2
Analysis Generated
Aug 31, 2026 - 14:23 vuln.today
CVE Published
Aug 31, 2026 - 13:50 cve.org
HIGH 8.8

DescriptionCVE.org

Joomla Extension - miniorgange.com - Unauthenticated arbitrary extension deinstallation via various miniOrange extensions - a missing authentication check allows unauthenticated actors to delete arbitrary installed extensions. Only the free versions of the miniOrange plugins are affected.

AnalysisAI

Unauthenticated extension deletion is possible across at least 24 free miniOrange plugin packages for Joomla due to a missing authentication check on extension management functionality. Any network-accessible attacker with no credentials and no user interaction can remove arbitrary installed Joomla extensions, including security-critical ones such as JoomShield or authentication plugins. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Persist
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Impact
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Vulnerability AssessmentAI

Exploitation The only prerequisite for exploitation is that the target Joomla site has at least one free miniOrange extension installed and enabled. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H) places this firmly in the critical-to-high tier with no attack requirements whatsoever. … 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 Consult the miniOrange vendor advisory at https://www.miniorange.com/ for patched extension versions; no specific fixed version numbers are available in the current data set, so administrators should check each individual extension's changelog in the Joomla Extension Directory or the miniOrange site directly. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, audit all Joomla instances to identify miniOrange plugin versions in use; immediately deactivate or uninstall affected plugins and document each instance. …

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CVE-2026-78074 vulnerability details – vuln.today

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