CVE-2023-4893

MEDIUM 6.4

Crayon Syntax Highlighter <= 2.8.4 - Authenticated (Contributor+) Server Side Request Forgery

CVSS Score

6.4

EPSS Score

0.0%

EPSS Percentile

0th

The Crayon Syntax Highlighter plugin for WordPress is vulnerable to Server Side Request Forgery via the 'crayon' shortcode in versions up to, and including, 2.8.4. This can allow authenticated attackers with contributor-level permissions or above to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.

CWE	CWE-918
Vendor	akarmenia
Product	crayon syntax highlighter
Published	Sep 12, 2023
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

akarmenia / Crayon Syntax Highlighter

0 ≤ 2.8.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/527f75f1-6361-4e16-8ae4-d38ca4589811?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/crayon-syntax-highlighter/trunk/crayon_highlighter.class.php#L83

Credits

István Márton