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CVE-2021-4080

28
FAUCET Score

CVE-2021-4080 is an Unrestricted Upload of File with Dangerous Type vulnerability affecting craterapp crater. With a CVSS score of 8.8 (HIGH), this flaw allows an authenticated attacker to upload malicious files, potentially leading to complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the high severity warrants attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.0.0CPE matchmatch criteria
cpe:2.3:a:craterapp:crater:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.47%
Probability of exploitation in next 30 days
EPSS Percentile
71.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0147 is in the 68th percentile among its peer group of 17,822 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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 (2)

composerpatch availablevia ghsa
Product: bytefury/craterFixed in: 6.0.0
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-wppj-3pjr-9w79high

crater is vulnerable to Unrestricted Upload of File with Dangerous Type

Jan 21, 2022

References

github.com / crater-invoice/crater/commit/cdc913d16cf624aee852bc9163a7c6ffc8d1da9d
PatchThird Party Advisory
huntr.dev / bounties/d7453360-baca-4e56-985f-481275fa38db
ExploitPatchThird Party Advisory