Joomla CMS up to 6.1.0 Admin Activation Endpoint cross-site request forgery

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Joomla CMS up to 6.1.0. This affects an unknown function of the component Admin Activation Endpoint. The manipulation results in cross-site request forgery. This vulnerability is identified as CVE-2026-35220. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Joomla CMS up to 6.1.0. Affected is an unknown function of the component Admin Activation Endpoint. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. CWE is classifying the issue as CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. This is going to have an impact on integrity. CVE summarizes:

Lack of CSRF token validation lead to a CSRF attack vector in the admin activation endpoint of com_users.

The weakness was released by Sun Huangnsec. The advisory is shared for download at developer.joomla.org. This vulnerability is traded as CVE-2026-35220 since 04/01/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/21/2026).

Upgrading to version 5.4.6 or 6.1.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-1688). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Open Source Joomla

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross-site request forgery
CWE: CWE-352 / CWE-862 / CWE-863
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: CMS 5.4.6/6.1.1

Timelineinfo

04/01/2026 CVE reserved
05/26/2026 +55 days Advisory disclosed
05/26/2026 +0 days VulDB entry created
07/21/2026 +56 days VulDB entry last update

Sourcesinfo

Vendor: joomla.org

Advisory: developer.joomla.org
Researcher: Sun Huangnsec
Status: Confirmed

CVE: CVE-2026-35220 (🔒)
GCVE (CVE): GCVE-0-2026-35220
GCVE (VulDB): GCVE-100-365736
CERT Bund: WID-SEC-2026-1688 - Joomla: Mehrere Schwachstellen

Entryinfo

Created: 05/26/2026 19:51
Updated: 07/21/2026 17:36
Changes: 05/26/2026 19:51 (69), 05/27/2026 21:35 (7), 07/21/2026 17:36 (11)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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