PT-2025-52838 · Csz Cms · Csz Cms

Published 2025-12-23 · Updated 2025-12-23 · CVE-2021-47738

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 CSZ CMS version 1.2.7

Description The software contains a persistent cross-site scripting issue that permits unauthorized users to inject malicious JavaScript into private messages. An attacker can send messages containing script payloads within the user-agent header. When an administrator views the message in the backend dashboard, the script will execute. The vulnerable component is the handling of the user-agent header when processing private messages.

Recommendations Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, sanitize the user-agent header before processing private messages.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-47738

Affected Products

Csz Cms

References · 7

• 🔥 https://exploit-db.com/exploits/48354 · Exploit
• https://osv.dev/vulnerability/CVE-2021-47738 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47738 · Security Note
• https://cszcms.com · Note
• https://sourceforge.net/projects/cszcms · Note
• https://vulncheck.com/advisories/csz-cms-persistent-cross-site-scripting-via-private-messaging · Note
• https://twitter.com/CVEnew/status/2003567283017282046 · Twitter Post