High severity · published Feb 26, 2026
CVE-2026-22205
SPIP < 4.4.10 Authentication Bypass via PHP Type Juggling
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
SPIP versions prior to 4.4.10 contain an authentication bypass vulnerability caused by PHP type juggling that allows unauthenticated attackers to access protected information. Attackers can exploit loose type comparisons in authentication logic to bypass login verification and retrieve sensitive internal data.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SP
SPIP · SPIP
before 4.4.10 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-22205
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-22205
Release Notes
https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-10.html
Product
https://git.spip.net/spip/spip
Third Party Advisory
https://www.vulncheck.com/advisories/spip-sql-injection-rce-via-union-php-tags
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