CVE-2021-3863
Cross-site Scripting (XSS) - Generic in snipe/snipe-it
snipe-it is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Cross-site Scripting (XSS) - Generic in snipe/snipe-it
snipe-it is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- Record
CVE-2021-3863- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-2162
snipe-it is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- Record
EUVD-2021-2162- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5rg2-6qr5-2xp8
Cross-site Scripting in snipe-it
snipe-it is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- Record
GHSA-5rg2-6qr5-2xp8- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
snipe-it is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- Record
CVE-2021-3863- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
snipe-it is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- Record
CVE-2021-3863- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-5rg2-6qr5-2xp8
Cross-site Scripting in snipe-it
snipe-it is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- Record
GHSA-5rg2-6qr5-2xp8- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
snipe/snipe-itPackagist |
before 5.3.0 | 5.3.0 |
snipe/snipe-itPackagist |
before 5.3.0, plus listed versions 3.2.0v0.1.0v0.1.1v0.1.2v0.2.0 Show 45 moreShow lessv0.3.0-alphav0.3.10-alphav0.3.11-alphav0.3.7-alphav0.3.8-alphav0.3.9-alphav1.0v1.1v1.2.0v1.2.1v1.2.10v1.2.11v1.2.2v1.2.3v1.2.3-betav1.2.4v1.2.4-betav1.2.5v1.2.6v1.2.6-betav1.2.6.1v1.2.7v1.2.7-betav1.2.8v1.2.9v2.0v2.0-RC-1v2.0-betav2.0.1v2.0.2v2.0.3v2.0.4v2.0.5v2.0.6v2.1.0v2.1.1v2.1.2v3.0v3.0-alphav3.0-alpha2v3.0-beta.1v3.0-beta.2v3.0-beta.3v3.0.0-betav3.1.0 |
5.3.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-3863 is a medium vulnerability (CVSS 5.5) in Snipe Snipe/snipe-it, published October 19, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.79%, the 56th percentile. Fixed in snipe/snipe-it 5.3.0.
References
Left out here: 127 versions. The JSON record has them.