CRITICALVulnerability
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NVD CRITICAL: CVE-2026-104070 — The Crayons plugin for SPIP before 3.5.0 contains a missing authorization vulner...

·Source: NIST NVD

Updated:

Executive Summary

The Crayons plugin for SPIP before 3.5.0 contains a missing authorization vulnerability that allows unauthenticated attackers to modify arbitrary editable object fields by omitting the secu_ anti-forgery parameter in crayons_store.php, causing the authorization dispatcher to resolve an unconditionally-true handler instead of the proper modification check. Attackers can chain this flaw to write a m

Analysis

The Crayons plugin for SPIP before 3.5.0 contains a missing authorization vulnerability that allows unauthenticated attackers to modify arbitrary editable object fields by omitting the secu_ anti-forgery parameter in crayons_store.php, causing the authorization dispatcher to resolve an unconditionally-true handler instead of the proper modification check. Attackers can chain this flaw to write a malicious .html skeleton file, disclose sensitive configuration files containing the site secret, and forge a signed ajax context to execute the uploaded skeleton, achieving arbitrary PHP code execution as the web-server user. CVSS Score: 9.8. Published: 2026-10-06T17:17:12.213.

Indicators of Compromise (1)

CVE (1)
CVE-2026-104070
Source Attribution

Originally published by NIST NVD on Oct 6, 2026. Verified by: NIST.

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