CVE-2026-27475
SPIP < 4.4.9 Insecure Deserialization
CVSS v3
8.1
HIGH
EPSS Score
1.0 %
exploit probability, as of 2026-10-17
CISA KEV
No
known exploited
Exploitation
none
SSVC status
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Affected and fixed versions
Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-27475 yet.
Description
SPIP before 4.4.9 allows Insecure Deserialization in the public area through the table_valeur filter and the DATA iterator, which accept serialized data. An attacker who can place malicious serialized content (a pre-condition requiring prior access or another vulnerability) can trigger arbitrary object instantiation and potentially achieve code execution. The use of serialized data in these components has been deprecated and will be removed in SPIP 5. This vulnerability is not mitigated by the SPIP security screen.
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- 2026-02-19
- Last Modified
- 2026-02-24
Frequently asked questions
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