PT-2021-23013 · Unknown+1 · Infaveo-Helpdesk+1

Seongil-Wio · Published 2021-10-01 · Updated 2021-10-04 · CVE-2021-40925

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 infaveo-helpdesk versions 1.11.0 and below

Description A cross-site scripting (XSS) issue allows remote attackers to inject arbitrary web script or HTML via the $ SERVER["PHP SELF"] parameter in the dompdf/dompdf/www/demo.php file. This enables attackers to execute malicious scripts on the victim's browser.

Recommendations For versions 1.11.0 and below, consider restricting access to the demo.php file until a patch is available. As a temporary workaround, avoid using the $ SERVER["PHP SELF"] parameter in the affected file to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-40925

Affected Products

Dompdf

Infaveo-Helpdesk

References · 6

• 🔥 https://github.com/ladybirdweb/faveo-helpdesk/issues/5423 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-40925 · Security Note
• https://osv.dev/vulnerability/CVE-2021-40925 · Vendor Advisory
• https://github.com/ladybirdweb/faveo-helpdesk · Note
• https://t.me/cibsecurity/29817 · Telegram Post
• https://t.me/cvenotify/21763 · Telegram Post