Crayon Syntax Highlighter
CVE-2023-4893
MEDIUM
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Lifecycle Timeline
1DescriptionCVE.org
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.
AnalysisAI
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. Rated medium severity (CVSS 6.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified as Server-Side Request Forgery (SSRF) (CWE-918), which allows attackers to make the server perform requests to unintended internal or external resources. 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. Affected products include: Aramk Crayon-Syntax-Highlighter.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate and allowlist destination URLs, block requests to internal networks, use network segmentation.
Same weakness CWE-918 – Server-Side Request Forgery (SSRF)
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External POC / Exploit Code
Leaving vuln.today