PT-2021-21888 · Yourls · Yourls

Published 2021-09-15 · Updated 2021-09-23 · CVE-2021-3785

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: yourls (affected versions not specified)

Description: The issue is related to Improper Neutralization of Input During Web Page Generation, also known as Cross-site Scripting. This occurs in the edit dialog of the application.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-3785

GHSA-M9FQ-C9HP-59G7

Affected Products

Yourls

References · 6

• 🔥 https://huntr.dev/bounties/b4085d13-54fa-4419-a2ce-1d780cc31638 · Exploit
• https://github.com/yourls/yourls/commit/1d8e224ebabb8a4c75b97f026950ed710faab0ff · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-3785 · Security Note
• https://osv.dev/vulnerability/CVE-2021-3785 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-m9fq-c9hp-59g7 · Vendor Advisory
• https://github.com/yourls/yourls · Note