CVE-2026-71573
HIGHCVSS 8.3/10EPSS 0.34%
Last modified
CVE-2026-71573 is a high-severity vulnerability rated 8.3/10 on the CVSS scale. Joomla! Core - [20260802] - Improper CORS origin validation in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper implementation prevented configured CORS origins from being properly validated in CORS requests.. EPSS estimates a 0.34% chance of exploitation in the next 30 days.
Description
Joomla! Core - [20260802] - Improper CORS origin validation in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper implementation prevented configured CORS origins from being properly validated in CORS requests.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Joomla | Joomla\! | >= 4.0.0, < 5.4.8 |
| Joomla | Joomla\! | >= 6.0.0, < 6.1.3 |
References
- https://developer.joomla.org/security-centre/20260802-core-improper-cors-origin-validation.htmlVendor Advisory, Broken Link
- https://www.joomla.org/Product
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-71573?
Joomla! Core - [20260802] - Improper CORS origin validation in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper implementation prevented configured CORS origins from being properly validated in CORS requests.
How severe is CVE-2026-71573?
CVE-2026-71573 has a CVSS score of 8.3/10 (HIGH severity). The EPSS model estimates a 0.34% probability of exploitation in the next 30 days.
How do I fix CVE-2026-71573?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2026-71573?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST