CVE-2023-3521
MEDIUMCVSS 6.1/10EPSS 0.89%
Last modified
CVE-2023-3521 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Cross-site Scripting (XSS) - Reflected in GitHub repository fossbilling/fossbilling prior to 0.5.4.. EPSS estimates a 0.89% chance of exploitation in the next 30 days.
Description
Cross-site Scripting (XSS) - Reflected in GitHub repository fossbilling/fossbilling prior to 0.5.4.
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 |
|---|---|---|
| Fossbilling | Fossbilling | < 0.5.4 |
References
- https://huntr.dev/bounties/76a3441d-7f75-4a8d-a7a0-95a7f5456eb0Exploit, Patch, Third Party Advisory
- https://huntr.dev/bounties/76a3441d-7f75-4a8d-a7a0-95a7f5456eb0Exploit, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-3521?
Cross-site Scripting (XSS) - Reflected in GitHub repository fossbilling/fossbilling prior to 0.5.4.
How severe is CVE-2023-3521?
CVE-2023-3521 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.89% probability of exploitation in the next 30 days.
How do I fix CVE-2023-3521?
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-2023-3521?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST