Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-3780

21
FAUCET Score

CVE-2021-3780 is a cross-site scripting (XSS) vulnerability affecting framasoft peertube, where improper neutralization of input during web page generation allows attackers to inject malicious scripts. This medium-severity vulnerability (CVSS 6.1) can be exploited remotely with low attack complexity, requiring user interaction, and could lead to limited confidentiality and integrity impacts. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.4.0CPE matchmatch criteria
cpe:2.3:a:framasoft:peertube:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.6HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
4.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.90%
Probability of exploitation in next 30 days
EPSS Percentile
55.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0090 is in the 67th percentile among its peer group of 26,219 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: peertubeFixed in: 3.4.0

Vendor Advisories (1)

npmGHSA-f2c5-997w-7f5cmedium

Cross-site Scripting in peertube

Sep 20, 2021

References

github.com / chocobozzz/peertube/commit/0ea2f79d45b301fcd660efc894469a99b2239bf6
PatchThird Party Advisory
huntr.dev / bounties/282807a8-4bf5-4fe2-af62-e05f945b3d65
ExploitThird Party Advisory