CVE-2026-27744

Name: CVE-2026-27744
Creator: NVD / NIST
Published: 2026-02-25T04:16:04.973+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.3/10EPSS 0.91%

Last modified Jun 17, 2026

CVE-2026-27744 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. 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. EPSS estimates a 0.91% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

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

CVSS 4.0

9.3/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.91%

55.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Spip	Tickets	< 4.3.3

References

https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-10.htmlRelease Notes
https://chocapikk.com/posts/2026/spip-plugins-vulnerabilities/Third Party Advisory
https://git.spip.net/spip-contrib-extensions/tickets/-/commit/869935b6687822ed79ad5477626a664d8ea6dcf7Patch
https://plugins.spip.net/ticketsProduct
https://www.vulncheck.com/advisories/spip-tickets-unauthenticated-rceThird Party Advisory

Timeline

Published: Feb 25, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-27744?

How severe is CVE-2026-27744?

CVE-2026-27744 has a CVSS score of 9.3/10 (CRITICAL severity). The EPSS model estimates a 0.91% probability of exploitation in the next 30 days.

How do I fix CVE-2026-27744?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-27744?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST