CVE-2018-16975

CRITICALNVD 9.89.8—

9.8

An issue was discovered in Elefant CMS before 2.0.7. There is a PHP Code Execution Vulnerability in /designer/add/stylesheet.php by using a .php extension in the New Stylesheet Name field in conjunction with

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 69.0%
KEV: Not listed

Published

September 12, 2018

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated May 28, 2026

Patch available. Sources: github_commit, github_release.

github_release Patch Available

2.0.7

Patch available: jbroadway/elefant elefant_2_0_7_stable

https://github.com/jbroadway/elefant/releases/tag/elefant_2_0_7_stable

generic

A PHP Code Execution Vulnerability in /designer/add/stylesheet.php at V2.0.5 · Issue #286 · jbroadway/elefant · GitHub

https://github.com/jbroadway/elefant/issues/286

github_commit Patch Available

commit 0795ab57c7ff (jbroadway/elefant)

Patch available: jbroadway/elefant elefant_2_0_7_stable (contains commit 0795ab57c7ff)

https://github.com/jbroadway/elefant/commit/0795ab57c7ffa53ff4af57e229f6d9680fa54a21

Affected Packages

(1 across 1 ecosystem)

Packagist(1)

Package	Vulnerable range	Fixed in	Dependents
elefant/cms	—	2.0.7	—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-94Improper Control of Generation of Code (Code Injection)

Data Freshness Timeline

(refreshed 11× in last 7d / 18× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 03:15 UTCEG score recompute
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 23:13 UTCOSV refresh
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2018-16975?

CVE-2018-16975 is a critical vulnerability published on September 12, 2018. An issue was discovered in Elefant CMS before 2.0.7. There is a PHP Code Execution Vulnerability in /designer/add/stylesheet.php by using a .php extension in the New Stylesheet Name field in conjunction with <?php content, because of insufficient input validation in…

When was CVE-2018-16975 disclosed?

CVE-2018-16975 was first published in the National Vulnerability Database on September 12, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-16975 actively exploited?

CVE-2018-16975 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 69.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-16975?

CVE-2018-16975 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2018-16975?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-16975, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2018-16975

📅 Published

🔄 Last Modified

📋 Advisory Details (3)