How severe is CVE-2018-16974?

CVE-2018-16974 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-2018-16974 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-16974?

CVE-2018-16974 affects Elefantcms Elefant. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-16974?

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-2018-16974 published?

CVE-2018-16974 was published on 2018-09-12 and last updated on 2026-06-17.

CVE-2018-16974

CVE-2018-16974 is a critical-severity vulnerability in Elefantcms Elefant 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-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Elefantcms Elefant
Published: 2018-09-12
Last modified: 2026-06-17

Description

An issue was discovered in Elefant CMS before 2.0.7. There is a PHP Code Execution Vulnerability in apps/filemanager/upload/drop.php by using /filemanager/api/rm/.htaccess to remove the .htaccess file, and then using a filename that ends in .php followed by space characters (for bypassing the blacklist).

Frequently asked questions

What is CVE-2018-16974?: An issue was discovered in Elefant CMS before 2.0.7. There is a PHP Code Execution Vulnerability in apps/filemanager/upload/drop.php by using /filemanager/api/rm/.htaccess to remove the .htaccess file, and then using a filename that ends in .php followed by space characters (for bypassing the blacklist).
How severe is CVE-2018-16974?: CVE-2018-16974 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-2018-16974 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-16974?: CVE-2018-16974 affects Elefantcms Elefant. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-16974?: 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-2018-16974 published?: CVE-2018-16974 was published on 2018-09-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:elefantcms:elefant:*:*:*:*:*:*:*:*

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