Skip to content

Cross-Site Scripting in webtorrent

Moderate severity GitHub Reviewed Published Sep 4, 2019 to the GitHub Advisory Database • Updated Apr 4, 2023

Package

npm webtorrent (npm)

Affected versions

< 0.107.6

Patched versions

0.107.6

Description

Versions of webtorrent prior to 0.107.6 are vulnerable to Cross-Site Scripting. webtorrent servers started with torrent.createServer() lists a torrent's title and files in the index page without sanitization. This allows attackers to execute arbitrary JavaScript in the victim's browser through files with names containing the malicious payload. The issue is mitigated due to the fact that the server only allows fetching data pieces from the torrent.

Recommendation

Upgrade to version 0.107.6 or later.

References

Reviewed Sep 3, 2019
Published to the GitHub Advisory Database Sep 4, 2019
Last updated Apr 4, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS score

0.081%
(36th percentile)

Weaknesses

CVE ID

CVE-2019-15782

GHSA ID

GHSA-gjh4-fcv3-whpq

Source code

No known source code

Credits

Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.