What is CVE-2021-32605?

CVE-2021-32605 is a critical-severity vulnerability in Zzzcms Zzzphp, classified under OS Command Injection. CVSS score: 9.8/10. Published 2021-05-11.

How severe is CVE-2021-32605?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2021-32605 known to be exploited?

7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Zzzcms Zzzphp

CVE-2021-32605

zzzcms zzzphp before 2.0.4 allows remote attackers to execute arbitrary OS commands by placing them in the keys parameter of a ?location=search URI, as demonstrated by an OS command within an "if" "end if" block.

Vulnerability class: Command Injection (OS Command Injection)

Published 2021-05-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.038 (89.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.038 · newest: 0.038 · change: 0.000

Affected products

Zzzcms Zzzphp

Weakness classification (CWE)

CWE-78 — OS Command Injection

Public proof-of-concept exploits

References

srcincite.io/advisories/src-2021-0015/ (Exploit, Third Party Advisory)
www.zzzcms.com/a/news/31_282_1.html (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2021-32605?: CVE-2021-32605 is a critical-severity vulnerability in Zzzcms Zzzphp, classified under OS Command Injection. CVSS score: 9.8/10. Published 2021-05-11.
How severe is CVE-2021-32605?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-32605 known to be exploited?: 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.