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Joomla! CMS EUVDEUVD-2026-42061

| CVE-2026-48948 MEDIUM
Improper Access Control (CWE-284)
2026-07-07 Joomla GHSA-qm46-px7w-x2xj
Authentication Bypass Joomla Cms
6.4
CVSS 4.0 · Vendor: Joomla
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Severity by source

Vendor (Joomla) PRIMARY
6.4 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/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
vuln.today AI
4.3 MEDIUM

Network-exploitable, low complexity, but PR:L since authentication is required; impact is confidentiality-only (contact data), scope unchanged.

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

Primary rating from Vendor (Joomla).

CVSS VectorVendor: Joomla

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/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
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
X

Lifecycle Timeline

1
Analysis Generated
Jul 07, 2026 - 19:05 vuln.today

DescriptionCVE.org

An improper access check allows user to download vcard exports of com_contact contacts that are inaccessible.

AnalysisAI

Improper access control in Joomla! CMS com_contact component exposes restricted contact records via vcard (VCF) export to authenticated users who should not have access. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Obtain authenticated Joomla session
Delivery
Enumerate com_contact record IDs
Exploit
Craft VCF export request with restricted contact ID
Execution
Bypass access check on download endpoint
Impact
Download restricted contact vcard data
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Vulnerability AssessmentAI

Exploitation Exploitation requires: (1) a valid authenticated session on the Joomla! … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The vendor-supplied CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H) scores 6.4 and presents a notable internal tension: it assigns PR:H (high privileges required) while the subsequent-system impacts are SC:H/SI:H/SA:H. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An authenticated Joomla user - such as a registered site member with no special editorial or admin rights - navigates to the VCF download endpoint for the com_contact component and supplies the ID of a contact record that has been access-controlled away from their user group. Because the access check is not properly enforced in the download code path, the CMS serves the vcard file containing the restricted contact's personal details (name, email, phone, address). …
Remediation Patch available per vendor advisory - administrators should consult the Joomla Security Centre advisory at https://developer.joomla.org/security-centre/1056-20260702-core-incorrect-access-control-in-com-contact-vcf-download.html to identify the fixed release version for their branch (5.x or 6.x) and upgrade immediately. … Detailed patch versions, workarounds, and compensating controls in full report.
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EUVD-2026-42061 vulnerability details – vuln.today
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