Skip to main content

Joomla! CMS EUVDEUVD-2026-42063

| CVE-2026-48951 MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2026-07-07 Joomla GHSA-g375-vm9h-5xvc
XSS Joomla Cms
5.9
CVSS 4.0 · Vendor: Joomla
Share

Severity by source

Vendor (Joomla) PRIMARY
5.9 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/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
4.8 MEDIUM

High privileges required to inject payload; user interaction required for execution; scope changes to victim browser but impact is limited to session-level data.

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

Lifecycle Timeline

1
Analysis Generated
Jul 07, 2026 - 19:01 vuln.today

DescriptionCVE.org

Lack of escaping leads to XSS vulnerabilities in modalreturn layouts of various components.

AnalysisAI

Cross-site scripting in Joomla! CMS modalreturn layout components enables a high-privileged attacker to inject and execute arbitrary JavaScript in a victim administrator's browser session. …

Unlock full vulnerability intelligence

  • Risk assessment & exploitation conditions
  • Attack chain visualization
  • Remediation with exact patch versions
  • Threat intelligence from 22 sources
  • Personal watchlist & email alerts
Continue with Google Continue with GitHub

Free forever · No credit card required

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Acquire or compromise high-privilege Joomla! account
Delivery
Inject unescaped XSS payload via affected component field
Exploit
Payload persists in modalreturn layout rendering
Execution
Victim administrator loads or interacts with modal
Persist
Malicious JavaScript executes in victim's browser
Impact
Steal session cookie or perform admin actions as victim
Sign in to reveal

Vulnerability AssessmentAI

Exploitation Exploitation requires the attacker to hold a high-privilege Joomla! … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 5.9 reflects a meaningful but bounded risk. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker who has obtained or controls a high-privilege Joomla! account (e.g., through credential phishing or a compromised shared admin account) injects an unescaped JavaScript payload into a field processed by a modalreturn layout. …
Remediation Apply the patch released by the Joomla! … Detailed patch versions, workarounds, and compensating controls in full report.
Sign in to read full assessment

Threat intelligence, references, and detailed analysis are available after sign-in.

More in Joomla Cms

View all
CVE-2026-48902 CRITICAL
9.8 May 26

Transport encryption downgrade in Joomla! CMS password and username reset workflows causes reset links to be generated w
CVE-2026-23898 HIGH
8.6 Apr 01

Arbitrary file deletion in Joomla! CMS com_joomlaupdate component via the autoupdate server mechanism allows remote atta
CVE-2026-35223 HIGH
8.6 May 26

Authorization bypass in Joomla CMS com_config webservice endpoints allows authenticated attackers with high privileges t
CVE-2026-23899 HIGH POC
8.6 Apr 01

Improper access control in Joomla! CMS webservice endpoints allows unauthorized attackers to bypass authentication and a
CVE-2026-48897 HIGH
8.2 May 26

Authentication bypass in Joomla! CMS 4.0.0-5.4.5 and 6.0.0-6.1.0 allows remote attackers to circumvent multi-factor auth
CVE-2026-48896 HIGH
8.2 May 26

Two-factor authentication bypass in Joomla! CMS versions 4.0.0-5.4.5 and 6.0.0-6.1.0 allows remote attackers to circumve
CVE-2026-48904 HIGH
8.2 May 26

Privilege escalation in Joomla! CMS versions 4.0.0 through 5.4.5 and 6.0.0 through 6.1.0 allows remote attackers to abus
CVE-2026-48898 HIGH
8.2 May 26

Privilege escalation in Joomla! CMS versions 4.0.0-5.4.5 and 6.0.0-6.1.0 allows remote attackers to abuse the com_users

CVE-2026-48901 HIGH
7.5 May 26

Information disclosure in Joomla! CMS arises because InputFilter::getInstance() builds its instance cache key without in
CVE-2026-40383 HIGH
7.5 May 26

Local file inclusion in Joomla! CMS versions 3.2.1 through 5.4.5 and 6.0.0 through 6.1.0 allows authenticated high-privi
CVE-2026-25901 MEDIUM
6.9 May 26

Cross-site scripting in Joomla! CMS's multilingual associations component (com_associations) allows an authenticated hig
CVE-2026-25900 MEDIUM
6.9 May 26

Stored cross-site scripting in Joomla! CMS feed modules allows a high-privileged authenticated attacker to inject unsani

Same weakness CWE-79 – Cross-site Scripting (XSS)

View all
CVE-2013-7389 MEDIUM POC
4.3
CVE-2021-25299 MEDIUM POC
6.1
CVE-2014-2120 MEDIUM
6.1
CVE-2023-40000 HIGH POC
8.3
CVE-2016-8581 MEDIUM POC
6.1
CVE-2013-5223 MEDIUM POC
5.4
CVE-2025-52367 MEDIUM POC
5.4
CVE-2015-0072 MEDIUM POC
4.3

Same technique XSS

View all
CVE-2017-9248 CRITICAL POC
9.8
CVE-2013-1710 CRITICAL POC
10.0
CVE-2013-7389 MEDIUM POC
4.3
CVE-2021-25299 MEDIUM POC
6.1
CVE-2014-2120 MEDIUM
6.1
CVE-2023-40000 HIGH POC
8.3
CVE-2024-52875 HIGH POC
8.8
CVE-2016-8581 MEDIUM POC
6.1

Share

EUVD-2026-42063 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy