CVE-2021-26030
MEDIUMCVSS 6.1/10EPSS 82.39%
Last modified
CVE-2021-26030 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. An issue was discovered in Joomla! 3.0.0 through 3.9.25. Inadequate escaping allowed XSS attacks using the logo parameter of the default templates on error page. EPSS estimates a 82.39% chance of exploitation in the next 30 days.
Description
An issue was discovered in Joomla! 3.0.0 through 3.9.25. Inadequate escaping allowed XSS attacks using the logo parameter of the default templates on error page
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Joomla | Joomla\! | >= 3.0.0, <= 3.9.25 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-26030?
An issue was discovered in Joomla! 3.0.0 through 3.9.25. Inadequate escaping allowed XSS attacks using the logo parameter of the default templates on error page
How severe is CVE-2021-26030?
CVE-2021-26030 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 82.39% probability of exploitation in the next 30 days.
How do I fix CVE-2021-26030?
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-2021-26030?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST