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CVE-2021-23447

21
FAUCET Score

CVE-2021-23447 is a medium-severity type confusion vulnerability affecting the teddy package prior to version 0.5.9. It allows an attacker to bypass input sanitization when the model content is an array, potentially leading to information disclosure or modification. The vulnerability has a CVSS score of 6.1 and requires user interaction, but has a low attack complexity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.5.9CPE matchmatch criteria
cpe:2.3:a:teddy_project:teddy:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.09%
Probability of exploitation in next 30 days
EPSS Percentile
62.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0109 is in the 75th percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 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 0.1 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
npmpatch availablevia ghsa
Product: teddyFixed in: 0.5.9

Vendor Advisories (1)

npmGHSA-5f38-9jw2-6r6hmedium

Cross-site Scripting in teddy

Oct 12, 2021

References

github.com / rooseveltframework/teddy/pull/518
PatchThird Party Advisory
github.com / rooseveltframework/teddy/releases/tag/0.5.9
Release NotesThird Party Advisory
snyk.io / vuln/SNYK-JS-TEDDY-1579557
ExploitThird Party Advisory