PatchTheCVECVE-2021-32616: 1CDN is open-source file sharing software
CVE-2021-32616 is a high-severity flaw (CVSS 8.1) affecting 1cdn. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
1CDN is open-source file sharing software. In 1CDN before commit f88a2730fa50fc2c2aeab09011f6f142fd90ec25, there is a basic cross-site scripting vulnerability that allows an attacker to inject /<script>//code</script> and execute JavaScript code on the client side.
Why this priority
- High severity
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.1 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 0.7% (top 46%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2021-05-28 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2021-32616?
1cdn: upgrade to 2021-05-16. Exact commands for each OS are on this page.
Is CVE-2021-32616 being exploited?
CVE-2021-32616 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2021-32616 affect?
CVE-2021-32616 affects 1cdn. Severity is high (CVSS 8.1). 1CDN is open-source file sharing software. In 1CDN before commit f88a2730fa50fc2c2aeab09011f6f142fd90ec25, there is a basic cross-site scripting vulnerability that allows an attacker to inject /<script>//code</script> and execute JavaScript
How urgent is CVE-2021-32616?
Priority 42/100. High severity