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CVE-2026-27744

CRITICAL

9.8

Description

The SPIP tickets plugin versions prior to 4.3.3 contain an unauthenticated remote code execution vulnerability in the forum preview handling for public ticket pages. The plugin appends untrusted request parameters into HTML that is later rendered by a template using unfiltered environment rendering (#ENV**), which disables SPIP output filtering. As a result, an unauthenticated attacker can inject crafted content that is evaluated through SPIP's template processing chain, leading to execution of code in the context of the web server.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/25/2026

Last Modified2/27/2026

Sourcenvd

Honeypot Sightings0

Affected Products

spip:tickets

Weaknesses (CWE)

CWE-94

References

https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-10.html(disclosure@vulncheck.com)

https://chocapikk.com/posts/2026/spip-plugins-vulnerabilities/(disclosure@vulncheck.com)

https://git.spip.net/spip-contrib-extensions/tickets/-/commit/869935b6687822ed79ad5477626a664d8ea6dcf7(disclosure@vulncheck.com)

https://plugins.spip.net/tickets(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/spip-tickets-unauthenticated-rce(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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