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TI-2026-68482 Aliases CVE-2026-104070GHSA-7c65-c88q-5jx5

Missing authorization in SPIP Crayons Plugin allows PHP code execution

Priority MEDIUM 49CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

The Crayons plugin for SPIP before 3.5.0 contains a missing authorization flaw (CWE-862) in crayons_store.php. An unauthenticated remote attacker can modify editable object fields by omitting the secu_ anti-forgery parameter, because the authorization dispatcher resolves an unconditionally true handler. The attacker can chain this to write a malicious .html skeleton file, read files that hold the site secret, and forge a signed ajax context to run the uploaded skeleton, which gives arbitrary PHP code execution as the web server user.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00571 47th percentileScored 2026-11-07
Fix Fixed SPIP Crayons Plugin (SPIP): 3.5.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SPIPSPIP Crayons Pluginbefore 3.5.03.5.0Patch availableCNA
  • SPIP Crayons Plugin VendorSPIP Affected before 3.5.0 Fixed in 3.5.0 Patch available CNA

Remediation

Update the SPIP Crayons Plugin to version 3.5.0 or later. The sources list no fixed version for SPIP Crayons Plugin other than 3.5.0.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA SPIP Crayons Plugin (SPIP) Fixed in 3.5.0

Timeline

  1. 2026-10-06 Threatist record created from CVE-2026-104070
  2. 2026-10-06 Alias added: GHSA-7c65-c88q-5jx5
  3. 2026-10-09 CISA SSVC decision points changed

References

Patch 1

Other 1

  • TI-2023-12107 SPIP before 4.2.1 allows Remote Code Execution via form values in the public area because… CVSS 3.1CRITICAL 9.8
  • TI-2024-07895 SPIP Bigup Multipart File Upload OS Command Injection CVSS 3.1CRITICAL 9.8
  • TI-2024-07375 SPIP porte_plume Plugin Arbitrary PHP Execution CVSS 3.1CRITICAL 9.8
  • TI-2026-50946 SPIP < 4.4.18 RCE via editer_objet.php Job Queue Injection CVSS 4.0CRITICAL 9.3
  • TI-2026-50945 SPIP < 4.4.18 Missing Authorization via ecrire/action/ CVSS 4.0CRITICAL 9.3
  • TI-2026-22104 SPIP tickets < 4.3.3 Unauthenticated RCE CVSS 4.0CRITICAL 9.3
See all 87 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences