CVE-2021-3831
MediumPublished
Cross-site Scripting (XSS) - Reflected in gnuboard/gnuboard5
- Published
- Dec 14, 2021
- Updated
- Aug 3, 2024
- Assigning CNA
- @huntrdev
- Evidence observed
- Aug 8, 2026
Primary CVSS
6.1/ 10Medium
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N1.8%
Low · next 30 days
- Percentile
- 77.3%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
gnuboard5 is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Sources
1- CVE-2021-3831Exploit
Unauthenticated Sensitive Information Disclosure
Responsible use
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