PT-2021-22929 · Unknown · Php-Fusion

Kietna · Published 2021-10-11 · Updated 2021-10-15 · CVE-2021-40541

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 PHPFusion version 9.03.110

Description The issue is related to cross-site scripting (XSS) in the preg patterns filter html tag without "//" in the descript() function. An authenticated user can trigger XSS by appending "//" at the end of the text.

Recommendations For PHPFusion version 9.03.110, consider disabling the descript() function until a patch is available to prevent exploitation. Restrict access to the html tag filter to minimize the risk of XSS attacks. Avoid appending "//" at the end of text in the affected function to prevent triggering the issue.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-40541

Affected Products

Php-Fusion

References · 5

• 🔥 https://github.com/PHPFusion/PHPFusion/issues/2373 · Exploit
• https://osv.dev/vulnerability/CVE-2021-40541 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-40541 · Security Note
• https://t.me/cibsecurity/30345 · Telegram Post
• https://t.me/cvenotify/22279 · Telegram Post