How severe is CVE-2022-28521?

CVE-2022-28521 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-28521 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-28521?

CVE-2022-28521 affects Zcms Project Zcms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-28521?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-28521 published?

CVE-2022-28521 was published on 2022-04-26 and last updated on 2026-06-17.

CVE-2022-28521

CVE-2022-28521 is a critical-severity vulnerability in Zcms Project Zcms with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Zcms Project Zcms
Published: 2022-04-26
Last modified: 2026-06-17

Description

ZCMS v20170206 was discovered to contain a file inclusion vulnerability via index.php?m=home&c=home&a=sp_set_config.

Frequently asked questions

What is CVE-2022-28521?: ZCMS v20170206 was discovered to contain a file inclusion vulnerability via index.php?m=home&c=home&a=sp_set_config.
How severe is CVE-2022-28521?: CVE-2022-28521 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-28521 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-28521?: CVE-2022-28521 affects Zcms Project Zcms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-28521?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-28521 published?: CVE-2022-28521 was published on 2022-04-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:zcms_project:zcms:20170206:*:*:*:*:*:*:*

More vulnerabilities in Zcms Project Zcms

CVE-2015-7346 — Critical (CVSS 9.8): SQL injection vulnerability in ZCMS 1.1.
CVE-2022-28522 — Medium (CVSS 5.4): ZCMS v20170206 was discovered to contain a stored cross-site scripting (XSS) vulnerability via…
CVE-2015-7347 — Medium (CVSS 4.8): Cross-site scripting (XSS) vulnerability in ZCMS JavaServer Pages Content Management System 1.1.

All CVEs affecting Zcms Project Zcms →