CVE-2026-27744
Unauthenticated Remote Code Execution in SPIP Tickets Plugin
Publication date: 2026-02-25
Last updated on: 2026-02-27
Assigner: VulnCheck
Description
Description
CVSS Scores
EPSS Scores
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| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| spip | tickets | to 4.3.3 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-94 | The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
[{'type': 'paragraph', 'content': 'CVE-2026-27744 is an unauthenticated remote code execution vulnerability in the SPIP tickets plugin versions prior to 4.3.3.'}, {'type': 'paragraph', 'content': 'The vulnerability occurs in the forum preview handling for public ticket pages, where untrusted request parameters are appended directly into HTML content.'}, {'type': 'paragraph', 'content': "This HTML content is then rendered by a SPIP template using unfiltered environment rendering (#ENV**), which disables SPIP's output filtering."}, {'type': 'paragraph', 'content': "As a result, an attacker without any authentication can inject crafted input that is processed through SPIP's template engine, leading to arbitrary code execution on the web server."}] [2]
How can this vulnerability impact me? :
This vulnerability allows an unauthenticated attacker to execute arbitrary code on the web server hosting the vulnerable SPIP tickets plugin.
The impact includes potential full compromise of the server, leading to unauthorized access, data theft, data manipulation, service disruption, or further attacks within the network.
The CVSS v4 base score of 9.3 indicates a critical severity with high impact on confidentiality, integrity, and availability.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
To mitigate the vulnerability CVE-2026-27744, you should upgrade the SPIP tickets plugin to version 4.3.3 or later, where the issue has been fixed.
The fix involves sanitizing untrusted request parameters before they are injected into HTML content, preventing unauthenticated remote code execution.
Applying the patch or update that ensures proper validation and sanitization of user input is critical to prevent exploitation.