Unauthenticated PHP execution via unfiltered preview rendering
Published Feb 25, 2026 · Updated Feb 25, 2026
Code injection in SPIP Tickets before 4.3.3 allows remote attackers to execute PHP code through a public ticket comment preview. The forum preview pipeline appends raw ticket_statut and other request values to erreurs/previsu, which a #ENV** template renders without script filtering. Exploitation requires the plugin to be active, at least one public ticket, and forum comments enabled; successful injection runs code as the web server.
Summary
What happened
Code injection in SPIP Tickets before 4.3.3 allows remote attackers to execute PHP code through a public ticket comment preview. The forum preview pipeline appends raw ticket_statut and other request values to erreurs/previsu, which a #ENV** template renders without script filtering. Exploitation requires the plugin to be active, at least one public ticket, and forum comments enabled; successful injection runs code as the web server.
The record
- CVE
- CVE-2026-27744
- Published
- Feb 25, 2026
- Updated
- Feb 25, 2026
- Vendor
- SPIP
- Product
- Tickets
- Classifications
- CWE-94, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 25, 2026CVE publishedPublication date reported by the CVE source.
- Feb 25, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <4.3.3
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Public ticket preview PHP-injection proof of conceptfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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