PatchTheCVECVE-2026-27744: The SPIP tickets plugin versions prior to 4.3.3 contain an unauthenticated remote code execution vulnerability
CVE-2026-27744 is a critical-severity flaw (CVSS 9.8) affecting tickets. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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 t
Why this priority
- Critical severity
- CISA SSVC: public proof of concept
- CISA SSVC: automatable with total technical impact
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.0% (top 36%) |
| CISA exploited list | No |
| Weakness | CWE-94 |
| Published | 2026-02-25 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Exact fixes by distribution
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- Write-up: chocapikk.com/posts/2026/spip-plugins-vulnerabilities/
- Write-up: www.vulncheck.com/advisories/spip-tickets-unauthenticated-rce
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-27744?
tickets: upgrade to 4.3.3. Exact commands for each OS are on this page.
Is CVE-2026-27744 being exploited?
CVE-2026-27744 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-27744 affect?
CVE-2026-27744 affects tickets. Severity is critical (CVSS 9.8). 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 re
How urgent is CVE-2026-27744?
Priority 61/100. Critical severity; CISA SSVC: public proof of concept; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action
Related CVEs
- CVE-2018-13742 HIGH 7.5 MITIGATE The mintToken function of a smart contract implementation for tickets (TKT), an Ethereum token, has an integer