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CVE-2021-29467

20
FAUCET Score

CVE-2021-29467 describes a cross-site scripting (XSS) vulnerability (CWE-79, CWE-80) in Wrongthink, an encrypted peer-to-peer chat program, affecting versions prior to 2.4.1. An unauthenticated attacker could inject arbitrary JavaScript by submitting a malicious fingerprint, leading to client-side code execution with low impact on confidentiality and integrity. While no active exploitation or public exploit code is known, and community discussion is minimal, the vulnerability has a CVSS score of 6.1 (Medium) due to its network-based attack vector and low attack complexity.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.4.1CPE matchmatch criteria
cpe:2.3:a:wrongthink_project:wrongthink:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.48%
Probability of exploitation in next 30 days
EPSS Percentile
38.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0048 is in the 40th percentile among its peer group of 26,234 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

Remediation records are not available for this CVE.

References

github.com / birb-digital/wrongthink/security/advisories/GHSA-529v-f2gf-62w9
ExploitThird Party Advisory