EUVD-2026-64844
GHSA-9v52-pgw4-78ww
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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
Cookie manipulation is remote, low-complexity, needs no privileges or interaction, and yields full admin account takeover, so C/I/A are High; scope kept Unchanged as compromise stays within the Joomla application.
Primary rating from Vendor (Joomla).
CVSS VectorVendor: Joomla
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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
Lifecycle Timeline
2DescriptionCVE.org
Joomla Extension - miniorange.com - Arbitrary account takeover in miniOrange OAuth Client < 3.2.0 - The manipulation of a cookie value allows actors to login as arbitrary accounts, including admins.
AnalysisAI
Arbitrary account takeover in the miniOrange OAuth Client extension for Joomla (versions before 3.2.0) lets a remote unauthenticated attacker authenticate as any user, including administrators, by manipulating a single cookie value. The flaw is an authorization/identity check that trusts a client-controlled cookie to establish the logged-in account, so tampering with it grants full session control. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The target Joomla site must have the miniOrange OAuth Client extension installed, published, and reachable over the network on a version below 3.2.0. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | All available signals point to genuine high priority. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker browses to a Joomla site that uses the miniOrange OAuth Client, intercepts or crafts the relevant session cookie, and sets its value to reference a super-administrator account. On the next request the extension treats the attacker as that admin, granting full control of the site with no credentials or user interaction. … |
| Remediation | Upgrade the miniOrange OAuth Client extension for Joomla to version 3.2.0 or later, the first release outside the affected range (Vendor-released patch: 3.2.0, inferred from the '< 3.2.0' affected-version boundary; confirm the exact fixed build with the vendor). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: identify all Joomla instances running miniOrange OAuth Client and document their version numbers; if the extension is not business-critical, disable it immediately and implement IP-based access restrictions on all administrative interfaces. …
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Same technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today