PT-2021-19482 · Chevereto · Chevereto

Published 2021-06-30 · Updated 2021-12-01 · CVE-2021-31721

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 Chevereto versions prior to 3.17.1

Description The issue allows Cross Site Scripting (XSS) via an image title at the image upload stage.

Recommendations For versions prior to 3.17.1, update to version 3.17.1 or later to resolve the issue. As a temporary workaround, consider validating and sanitizing image titles to prevent XSS attacks. Restrict access to the image upload feature to minimize the risk of exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-31721

Affected Products

Chevereto

References · 8

• 🔥 http://packetstormsecurity.com/files/164183/Cloudron-6.2-Cross-Site-Scripting.html · Exploit
• 🔥 https://exploit-db.com/exploits/49859 · Exploit
• https://osv.dev/vulnerability/CVE-2021-31721 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-31721 · Security Note
• http://chevereto.com · Vendor Advisory
• https://t.me/defcon_news/85339 · Telegram Post
• https://t.me/cvenotify/16899 · Telegram Post
• https://t.me/cvenotify/21115 · Telegram Post