CVE-2026-76612 PUBLISHED

Joomla Extension - yootheme.com - Unauthenticated stored XSS via user-controlled fields in Zoo < 4.1.66

Assigner: Joomla
Reserved: 19.08.2026 Published: 21.08.2026 Updated: 21.08.2026

Joomla Extension - yootheme.com - Unauthenticated stored XSS via user-controlled fields in Zoo < 4.1.66 - User supplied input in comments and user supplied field elements weren't escaped, leading to a stored XSS vector.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
CVSS Score: 8.6

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

CVSS 4.0

Product Status

Vendor	yootheme.com
Product	Zoo extension for Joomla
Versions	Default: unaffected Version 1.0.0-4.1.65 is affected

Credits

Phil Taylor, mysites.guru finder

References

https://www.yootheme.com/

Problem Types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE