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CVE-2021-42053

30
FAUCET Score

CVE-2021-42053 is a stored Cross-Site Scripting (XSS) vulnerability affecting the Unicorn framework for Django, specifically versions up to 0.35.3, where malicious scripts can be injected via the component.name parameter. Rated with a CVSS score of 5.4 (Medium), this vulnerability requires user interaction and low privileges, potentially leading to limited impact on confidentiality and integrity. While not actively exploited in the wild (no KEV entry), a public exploit (EDB-50393) exists, though there is minimal community discussion or media coverage surrounding it.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.35.3CPE matchmatch criteria
cpe:2.3:a:django-unicorn:unicorn:*:*:*:*:*:django:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.52%
Probability of exploitation in next 30 days
EPSS Percentile
83.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-50393 · Oct 8, 2021
This CVE's current EPSS score of 0.0252 is in the 98th percentile among its peer group of 15,239 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 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: django-unicornFixed in: 0.36.0

Vendor Advisories (1)

pipGHSA-c87f-fq5g-63r2medium

Cross-site scripting in Unicorn framework

Oct 12, 2021

References

packetstormsecurity.com / files/164442/django-unicorn-0.35.3-Cross-Site-Scripting.html
ExploitThird Party Advisory
github.com / adamghill/django-unicorn/compare/0.35.3...0.36.0
PatchThird Party Advisory
github.com / adamghill/django-unicorn/pull/288/files
PatchThird Party Advisory