How severe is CVE-2018-18892?

CVE-2018-18892 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-2018-18892 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18892?

CVE-2018-18892 affects 1234n Minicms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-18892?

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-2018-18892 published?

CVE-2018-18892 was published on 2018-11-01 and last updated on 2026-06-17.

CVE-2018-18892

CVE-2018-18892 is a critical-severity vulnerability in 1234n Minicms 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. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: 1234n Minicms
Published: 2018-11-01
Last modified: 2026-06-17

Description

MiniCMS 1.10 allows execution of arbitrary PHP code via the install.php sitename parameter, which affects the site_name field in mc_conf.php.

Frequently asked questions

What is CVE-2018-18892?: MiniCMS 1.10 allows execution of arbitrary PHP code via the install.php sitename parameter, which affects the site_name field in mc_conf.php.
How severe is CVE-2018-18892?: CVE-2018-18892 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-2018-18892 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18892?: CVE-2018-18892 affects 1234n Minicms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-18892?: 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-2018-18892 published?: CVE-2018-18892 was published on 2018-11-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:1234n:minicms:1.10:*:*:*:*:*:*:*

More vulnerabilities in 1234n Minicms

CVE-2020-19896 — Critical (CVSS 9.8): File inclusion vulnerability in Minicms v1.9 allows remote attackers to execute arbitary PHP code via post-edit.php.
CVE-2020-36052 — Critical (CVSS 9.8): Directory traversal vulnerability in post-edit.php in MiniCMS V1.10 allows remote attackers to include and execute…
CVE-2021-33387 — Critical (CVSS 9.6): Cross Site Scripting Vulnerability in MiniCMS v.1.10 allows attacker to execute arbitrary code via a crafted get…
CVE-2018-9092 — High (CVSS 8.8): There is a CSRF vulnerability in mc-admin/conf.php in MiniCMS 1.10 that can change the administrator account password.
CVE-2022-33121 — High (CVSS 8.1): A Cross-Site Request Forgery (CSRF) in MiniCMS v1.11 allows attackers to arbitrarily delete local .dat files via…
CVE-2020-36051 — High (CVSS 7.5): Directory traversal vulnerability in page_edit.php in MiniCMS V1.10 allows remote attackers to read arbitrary files via…

All CVEs affecting 1234n Minicms →

Other CWE-94 (Code Injection) vulnerabilities

CVE-2026-57624 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Blocksy Companion Pro <= 2.1.46 versions.
CVE-2026-10134 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 allows an attacker to read every secret available to the Langflow process, read…
CVE-2026-53576 — Critical (CVSS 10.0): Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, the authentication filter…
CVE-2026-10561 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined…
CVE-2026-25470 — Critical (CVSS 10.0): Improper Control of Generation of Code ('Code Injection') vulnerability in ACPT ACPT (Pro) - Custom Post Types Plugin…
CVE-2026-48836 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Easy Invoice <= 2.1.19 versions.

Browse all CWE-94 (Code Injection) vulnerabilities →