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.
Metrics
Affected Vendors & Products
References
History
Fri, 09 Oct 2026 09:15:00 +0000
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Spip
Spip spip Crayons Plugin |
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Spip
Spip spip Crayons Plugin |
Fri, 09 Oct 2026 02:30:00 +0000
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ssvc
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Tue, 06 Oct 2026 16:30:00 +0000
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| Description | 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. | |
| Title | SPIP Crayons Plugin < 3.5.0 Authorization Bypass RCE | |
| Weaknesses | CWE-862 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-10-06T16:16:07.042Z
Updated: 2026-10-09T01:11:15.811Z
Reserved: 2026-10-01T18:02:50.082Z
Link: CVE-2026-104070
Updated: 2026-10-09T01:11:11.723Z
Status : Awaiting Analysis
Published: 2026-10-06T17:17:12.213
Modified: 2026-10-09T02:16:54.557
Link: CVE-2026-104070
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