How severe is CVE-2022-28440?

CVE-2022-28440 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-28440 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-28440?

CVE-2022-28440 affects Ucms Project Ucms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-28440?

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

When was CVE-2022-28440 published?

CVE-2022-28440 was published on 2022-04-21 and last updated on 2026-06-17.

CVE-2022-28440

CVE-2022-28440 is a high-severity vulnerability in Ucms Project Ucms with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Ucms Project Ucms
Published: 2022-04-21
Last modified: 2026-06-17

Description

An arbitrary file upload vulnerability in UCMS v1.6 allows attackers to execute arbitrary code via a crafted PHP file.

Frequently asked questions

What is CVE-2022-28440?: An arbitrary file upload vulnerability in UCMS v1.6 allows attackers to execute arbitrary code via a crafted PHP file.
How severe is CVE-2022-28440?: CVE-2022-28440 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-28440 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-28440?: CVE-2022-28440 affects Ucms Project Ucms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-28440?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-28440 published?: CVE-2022-28440 was published on 2022-04-21 and last updated on 2026-06-17.

References

https://github.com/k0xx11/bug_report/blob/main/UCMS-1.6/UCMS-RCE1.md

Affected products (1)

cpe:2.3:a:ucms_project:ucms:1.6:*:*:*:*:*:*:*

More vulnerabilities in Ucms Project Ucms

CVE-2022-38297 — Critical (CVSS 9.8): UCMS v1.6.0 contains an authentication bypass vulnerability which is exploited via cookie poisoning.
CVE-2022-35426 — Critical (CVSS 9.8): UCMS 1.6 is vulnerable to arbitrary file upload via ucms/sadmin/file PHP file.
CVE-2020-25537 — Critical (CVSS 9.8): File upload vulnerability exists in UCMS 1.5.0, and the attacker can take advantage of this vulnerability to obtain…
CVE-2020-25483 — Critical (CVSS 9.8): An arbitrary command execution vulnerability exists in the fopen() function of file writes of UCMS v1.4.8, where an…
CVE-2018-17036 — Critical (CVSS 9.8): An issue was discovered in UCMS 1.4.6 and 1.6. It allows PHP code injection during installation via the systemdomain…
CVE-2018-17035 — Critical (CVSS 9.8): UCMS 1.4.6 has SQL injection during installation via the install/index.php mysql_dbname parameter.

All CVEs affecting Ucms Project Ucms →

Other CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities

CVE-2026-39770 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in Doctreat <= 1.7.0 versions.
CVE-2026-32579 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in Kognetiks Chatbot for WordPress <= 2.4.9 versions.
CVE-2026-102427 — Critical (CVSS 10.0): Joomla Extension - ordasoft.com - Unauthenticated Remote Code Execution in OrdaSoft Joomla CCK < 8.3.16 -…
CVE-2026-4357 — Critical (CVSS 10.0): The Embed HTML5 Game WordPress plugin through 1.3 does not properly restrict who can upload files via the plugin, as…
CVE-2026-84147 — Critical (CVSS 10.0): This vulnerability exists in the ERP system due to improper authentication controls and inadequate file type validation…
CVE-2026-81780 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in Hash Form <= 1.4.2 versions.

Browse all CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities →