CVE-2026-5696 PUBLISHED

Multiple vulnerabilities in the Microweber administration panel

Assigner: INCIBE
Reserved: 06.04.2026 Published: 23.09.2026 Updated: 23.09.2026

Reflected Cross-Site Scripting (XSS) in Microweber. The vulnerability lies in the ‘group’ parameter of the ‘/admin/settings’ endpoint in the administration panel. A successful exploit allows an attacker to trick an authenticated user into executing malicious JavaScript code in their browser. This enables the attacker to perform actions without the victim’s consent, steal confidential information or hijack the user’s session.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
CVSS Score: 5.9

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	High
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	High
User Interaction	Active

CVSS 4.0

Product Status

Vendor	Microweber
Product	Administration panel
Versions	Default: unaffected Version 2.0.19 is affected

Solutions

There is no reported solution at this time.

Credits

David Aparicio Salcedo finder

References

https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-microweber-administration-panel

Problem Types

CWE-79 Improper neutralization of input during web page generation ('cross-site scripting') CWE