PT-2021-10633 · Xiuno Bbs · Xiuno Bbs

Published 2021-10-04 · Updated 2021-10-13 · CVE-2020-21496

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: Xiuno BBS version 4.0.4

Description: A cross-site scripting (XSS) issue exists in the /admin/?setting-base.htm component, allowing attackers to execute arbitrary web scripts or HTML via the sitebrief parameter.

Recommendations: For Xiuno BBS version 4.0.4, consider restricting access to the /admin/?setting-base.htm component until a patch is available, and avoid using the sitebrief parameter in this endpoint to minimize the risk of exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2020-21496

Affected Products

Xiuno Bbs

References · 5

• 🔥 https://github.com/wanghaiwei/xiuno-docker/issues/5 · Exploit
• https://osv.dev/vulnerability/CVE-2020-21496 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-21496 · Security Note
• https://gitee.com/xiuno/xiunobbs/issues/I16BI3 · Note
• https://t.me/cibsecurity/29943 · Telegram Post