CVE-2026-76612: Joomla Extension - yootheme.com - Unauthenticated stored XSS via user-controlled fields in Zoo < 4.1.66 - User
39
Routine
HIGH 8.6
CVE-2026-76612 is a high-severity flaw (CVSS 8.6) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- High severity
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 8.6 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Active |
| EPSS exploit chance | 0.4% (top 63%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2026-08-21 |
| Last modified | 2026-10-23 |
Publisher (CNA): Joomla! Project
Timeline
- Published CVE record published
- Updated Record last modified
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Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.