PatchTheCVECVE-2021-30463: VestaCP through 0.9.8-24 allows attackers to gain privileges by creating symlinks to files for which they lack
CVE-2021-30463 is a high-severity flaw (CVSS 7.8) affecting control panel. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
VestaCP through 0.9.8-24 allows attackers to gain privileges by creating symlinks to files for which they lack permissions. After reading the RKEY value from user.conf under the /usr/local/vesta/data/users/admin directory, the admin password can be changed via a /reset/?action=confirm&user=admin&code= URI. This occurs because chmod is used unsafely.
Why this priority
- High severity
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.8 (High) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.5% (top 57%) |
| CISA exploited list | No |
| Weakness | CWE-59 |
| Published | 2021-04-08 |
| 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-2021-30463?
control panel: upgrade to newer than 0.9.8-24. Exact commands for each OS are on this page.
Is CVE-2021-30463 being exploited?
CVE-2021-30463 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-2021-30463 affect?
CVE-2021-30463 affects control panel. Severity is high (CVSS 7.8). VestaCP through 0.9.8-24 allows attackers to gain privileges by creating symlinks to files for which they lack permissions. After reading the RKEY value from user.conf under the /usr/local/vesta/data/users/admin directory, the admin passwor
How urgent is CVE-2021-30463?
Priority 43/100. High severity; Public exploit reference
Related CVEs
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- CVE-2023-5839 HIGH 7.8 UPGRADE Privilege Chaining in GitHub repository hestiacp/hestiacp prior to 1.8.9.
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- CVE-2022-2636 HIGH 8.5 UPGRADE Improper Control of Generation of Code ('Code Injection') in GitHub repository hestiacp/hestiacp prior to 1.6.