PT-2021-23309 · Unknown · Justwriting

Seongil-Wio · Published 2021-10-01 · Updated 2021-10-04 · CVE-2021-41467

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions JustWriting versions 1.0.0 and below

Description A cross-site scripting (XSS) issue allows remote attackers to inject arbitrary web script or HTML via the challenge parameter in the application/controllers/dropbox.php file.

Recommendations For JustWriting versions 1.0.0 and below, avoid using the challenge parameter in the affected API endpoint until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-41467

GHSA-GXMC-5WJ3-JX64

Affected Products

Justwriting

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2021-41467 · Security Note
• https://osv.dev/vulnerability/GHSA-gxmc-5wj3-jx64 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-41467 · Vendor Advisory
• https://github.com/hjue/JustWriting · Note
• https://github.com/hjue/JustWriting/issues/106 · Note