High severity · published May 12, 2026
CVE-2026-8429
SPIP < 4.4.14 Remote Code Execution via Private Space
8.8
CVSS
0.5%
EPSS
No
On KEV
Description
SPIP versions prior to 4.4.14 contain a remote code execution vulnerability in the private space that allows attackers to execute arbitrary code in the context of the web server. Attackers can exploit this vulnerability to achieve code execution that bypasses the SPIP security screen protections.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SP
SPIP · SPIP
before 4.4.14 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-8429
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-8429
blog.spip.net
https://blog.spip.net/
www.vulncheck.com
https://www.vulncheck.com/advisories/spip-prior-to-remote-code-execution-via-private-space
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