Server-Side Request Forgery in the markdown_to_pdf action of Rapid7 InsightConnect Markdown Plugin on Linux in versions prior to 4.0.2 allows remote attackers to make arbitrary outbound HTTP requests via unsanitized resource-loading HTML elements (img/src, CSS url(), @import) embedded in Markdown input. The initial fix in 4.0.0 disabled JavaScript but did not neutralize resource-loading vectors. Resolved in 4.0.2 by sanitizing HTML with an allowlist of tags, attributes, and URL schemes.
Metrics
Affected Vendors & Products
References
History
Fri, 24 Jul 2026 03:45:00 +0000
| Type | Values Removed | Values Added |
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| Description | Server-Side Cross-Site Scripting and Server-Side Request Forgery vulnerability in the markdown_to_pdf action of Rapid7 InsightConnect Markdown Plugin version 3.1.4 and earlier on Linux allows remote attackers to execute JavaScript server-side and make arbitrary outbound HTTP requests via crafted content embedded in Markdown input. The PDF rendering engine does not restrict script execution or outbound network access. | Server-Side Request Forgery in the markdown_to_pdf action of Rapid7 InsightConnect Markdown Plugin on Linux in versions prior to 4.0.2 allows remote attackers to make arbitrary outbound HTTP requests via unsanitized resource-loading HTML elements (img/src, CSS url(), @import) embedded in Markdown input. The initial fix in 4.0.0 disabled JavaScript but did not neutralize resource-loading vectors. Resolved in 4.0.2 by sanitizing HTML with an allowlist of tags, attributes, and URL schemes. |
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Fri, 26 Jun 2026 13:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Fri, 26 Jun 2026 10:45:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Rapid7
Rapid7 insightconnect Markdown Plugin |
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| Vendors & Products |
Rapid7
Rapid7 insightconnect Markdown Plugin |
Fri, 26 Jun 2026 02:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Server-Side Cross-Site Scripting and Server-Side Request Forgery vulnerability in the markdown_to_pdf action of Rapid7 InsightConnect Markdown Plugin version 3.1.4 and earlier on Linux allows remote attackers to execute JavaScript server-side and make arbitrary outbound HTTP requests via crafted content embedded in Markdown input. The PDF rendering engine does not restrict script execution or outbound network access. | |
| Title | Server-Side Cross-Site Scripting and SSRF in Rapid7 InsightConnect Markdown to PDF Plugin | |
| Weaknesses | CWE-79 CWE-918 |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: rapid7
Published: 2026-06-26T01:59:58.963Z
Updated: 2026-07-24T03:10:45.058Z
Reserved: 2026-05-15T06:29:03.740Z
Link: CVE-2026-8661
Updated: 2026-06-26T12:23:49.835Z
Status : Awaiting Analysis
Published: 2026-06-26T02:16:54.640
Modified: 2026-07-24T04:16:52.183
Link: CVE-2026-8661
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