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CVE-2021-30070

25
FAUCET Score

CVE-2021-30070 is a high-severity vulnerability affecting HestiaCP versions prior to 1.3.5, allowing unauthenticated attackers to arbitrarily install packages. This is due to improper sanitization of the 'pkg' parameter in update requests, which is directly passed to the operating system's package manager. With a CVSS score of 7.5, this vulnerability presents a significant integrity impact, as attackers can compromise system integrity by installing malicious software. There is currently no evidence of active exploitation, nor are public exploit codes or Metasploit modules available, and community discussion remains minimal.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.3.5CPE matchmatch criteria
cpe:2.3:a:hestiacp:hestiacp:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.65%
Probability of exploitation in next 30 days
EPSS Percentile
47.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0065 is in the 24th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / hestiacp/hestiacp/commit/27556a9a43aeaf308b33be224c2e70f2011574e6
PatchThird Party Advisory
github.com / hestiacp/hestiacp/commit/9a1fccd37f2842fdf96ffb48895c4bfa9788c469
PatchThird Party Advisory