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CVE-2021-3028

30
FAUCET Score

CVE-2021-3028 is a critical code execution vulnerability affecting git-big-picture versions prior to 1.0.0. It arises from improper handling of apostrophe characters in branch names, allowing an attacker to execute arbitrary code. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. Despite its severity, there is currently no public exploit code available, nor is there evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.0CPE matchmatch criteria
cpe:2.3:a:git-big-picture_project:git-big-picture:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.80%
Probability of exploitation in next 30 days
EPSS Percentile
85.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0280 is in the 76th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: git-big-pictureFixed in: 1.0.0

Vendor Advisories (1)

pipGHSA-x38j-4rr5-hqrjcritical

git-big-picture Code Execution

May 24, 2022

References

github.com / git-big-picture/git-big-picture/pull/27
PatchThird Party Advisory
github.com / git-big-picture/git-big-picture/pull/62
PatchThird Party Advisory
github.com / git-big-picture/git-big-picture/releases/tag/v1.0.0
Release NotesThird Party Advisory