CVE-2020-21493
MEDIUMCVSS 5.3/10EPSS 0.97%
Last modified
CVE-2020-21493 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. An issue in the component route\user.php of Xiuno BBS v4.0.4 allows attackers to enumerate usernames.. EPSS estimates a 0.97% chance of exploitation in the next 30 days.
Description
An issue in the component route\user.php of Xiuno BBS v4.0.4 allows attackers to enumerate usernames.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Xiuno | Xiunobbs | 4.0.4 |
References
- https://gitee.com/xiuno/xiunobbs/issues/I1690WIssue Tracking, Third Party Advisory
- https://github.com/wanghaiwei/xiuno-docker/issues/3Exploit, Issue Tracking, Third Party Advisory
- https://gitee.com/xiuno/xiunobbs/issues/I1690WIssue Tracking, Third Party Advisory
- https://github.com/wanghaiwei/xiuno-docker/issues/3Exploit, Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-21493?
An issue in the component route\user.php of Xiuno BBS v4.0.4 allows attackers to enumerate usernames.
How severe is CVE-2020-21493?
CVE-2020-21493 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.97% probability of exploitation in the next 30 days.
How do I fix CVE-2020-21493?
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-2020-21493?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST