CVE-2026-35223
Joomla! Core - [20260508] - Improper access check in com_config webservice endpoints
Description
An improper access check allows unauthorized access to com_config webservice endpoints.
INFO
Published Date :
May 26, 2026, 5:16 p.m.
Last Modified :
July 24, 2026, 11:10 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 4.0 | HIGH | 6ff30186-7fb7-4ad9-be33-533e7b05e586 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Review and enforce access checks on webservice endpoints.
- Restrict access to sensitive configuration endpoints.
- Update access control mechanisms.
- Test access controls thoroughly.
Public PoC/Exploit Available at Github
CVE-2026-35223 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-35223.
| URL | Resource |
|---|---|
| https://developer.joomla.org/security-centre/1040-20260508-core-improper-access-check-in-com-config-webservice-endpoints.html | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-35223 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-35223
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Python PHP
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-35223 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-35223 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Jul. 24, 2026
Action Type Old Value New Value Added Translation Title: Joomla! CMS de Joomla! Project, Description: Una comprobación de acceso incorrecta permite el acceso no autorizado a los puntos finales del servicio web com_config. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Joomla! Project', 'product': 'Joomla! CMS', 'versions': [{'status': 'affected', 'version': '4.0.0-5.4.5'}, {'status': 'affected', 'version': '6.0.0-6.1.0'}], 'defaultStatus': 'unaffected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-35223', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-05-26T00:00:00+00:00'} -
Initial Analysis by [email protected]
May. 28, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:joomla:joomla!:*:*:*:*:*:*:*:* versions from (including) 4.0.0 up to (excluding) 5.4.6 *cpe:2.3:a:joomla:joomla!:*:*:*:*:*:*:*:* versions from (including) 6.0.0 up to (excluding) 6.1.1 Added Reference Type Joomla! Project: https://developer.joomla.org/security-centre/1040-20260508-core-improper-access-check-in-com-config-webservice-endpoints.html Types: Vendor Advisory -
New CVE Received by [email protected]
May. 26, 2026
Action Type Old Value New Value Added Description An improper access check allows unauthorized access to com_config webservice endpoints. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/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 Added CWE CWE-284 Added Reference https://developer.joomla.org/security-centre/1040-20260508-core-improper-access-check-in-com-config-webservice-endpoints.html