CVE-2021-47738

low-risk
Published 2025-12-23

CSZ CMS 1.2.7 contains a persistent cross-site scripting vulnerability that allows unauthorized users to embed malicious JavaScript in private messages. Attackers can send messages with script payloads in the user-agent header, which will execute when an admin views the message in the backend dashboard.

Do I need to act?

-
0.03% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.4/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Cszcms

References (4)

Product https://sourceforge.net/projects/cszcms/
Product https://www.cszcms.com/
Exploit https://www.exploit-db.com/exploits/48354
Third Party Advisory https://www.vulncheck.com/advisories/csz-cms-persistent-cross-site-scripting-via...
26
/ 100
low-risk
Severity 21/34 · High
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal