PT-2021-14142 · Basercms · Basercms

Yamaguchi Kakeru · Published 2021-03-26 · Updated 2021-06-08 · CVE-2021-20683

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: baserCMS versions prior to 4.4.5

Description: The issue is related to improper neutralization of JavaScript input in the blog article editing function, allowing remote authenticated attackers to inject an arbitrary script via unspecified vectors.

Recommendations: For versions prior to 4.4.5, update to version 4.4.5 or later to resolve the issue. As a temporary workaround, consider restricting access to the blog article editing function to minimize the risk of exploitation.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-20683

GHSA-V9W8-HQ92-V39M

Affected Products

Basercms

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2021-20683 · Security Note
• https://osv.dev/vulnerability/CVE-2021-20683 · Vendor Advisory
• https://basercms.net/security/JVN64869876 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-v9w8-hq92-v39m · Vendor Advisory
• https://github.com/baserproject/basercms/commit/88ccc61e5656b05dd13204d61de706efaa2cd0b1 · Note
• https://t.me/cvenotify/12015 · Telegram Post
• https://t.me/cvenotify/12035 · Telegram Post
• https://jvn.jp/en/jp/JVN64869876/index.html · Note