EUVD-2026-37596Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Network-reachable PHP LFI without auth (AV:N/PR:N/UI:N); AC:H reflects unknown specific parameter/path; primary impact is file disclosure (C:H) with limited integrity and no inherent availability impact absent confirmed RCE chain.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionCVE.org
Unauthenticated Local File Inclusion in ChapterOne <= 1.7 versions.
AnalysisAI
Unauthenticated local file inclusion in the Mikado-Themes ChapterOne WordPress theme (versions 1.7 and earlier) allows remote attackers to coerce the PHP application into including arbitrary local files via crafted requests. Successful exploitation can disclose sensitive files such as wp-config.php and, depending on server configuration, lead to PHP code execution by including attacker-influenced content. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the target WordPress site has the Mikado-Themes ChapterOne theme installed and active at version 1.7 or earlier, and that the attacker can reach the vulnerable theme endpoint over HTTP/HTTPS - typical for any internet-exposed WordPress install. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H, 8.1) signals unauthenticated remote reach with high impact across confidentiality, integrity and availability, tempered by high attack complexity - likely reflecting that exploitation depends on specific parameter knowledge or a particular request shape rather than a trivial GET. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An unauthenticated attacker sends a crafted HTTP request to a ChapterOne theme endpoint (for example an AJAX action or template-loading parameter) supplying a traversal-encoded path that resolves to wp-config.php, retrieving database credentials and WordPress secret keys from the response. With those credentials the attacker can pivot to direct database access or, if log files or uploaded content are includable, escalate the LFI into PHP code execution by including a poisoned log entry or uploaded image containing PHP. |
| Remediation | No vendor-released patched version is identified in the available data for ChapterOne, so the primary action is to monitor Mikado-Themes and the Patchstack advisory at https://patchstack.com/database/wordpress/theme/chapterone/vulnerability/wordpress-chapterone-theme-1-7-local-file-inclusion-vulnerability for an updated release above 1.7 and apply it immediately when published. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Audit all WordPress installations for ChapterOne theme v1.7 or earlier; restrict web server file permissions to deny wp-config.php access. …
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External POC / Exploit Code
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