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URL: https://nvd.nist.gov/vuln/detail/CVE-2026-27475

⇱ NVD - CVE-2026-27475

  1. Vulnerabilities

CVE-2026-27475 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NVD assessment not yet provided.

CVSS-B 9.2 CRITICAL
Vector:  CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-9.html VulnCheck Release Notes  Vendor Advisory 
https://git.spip.net/spip/spip VulnCheck Product 
https://www.vulncheck.com/advisories/spip-insecure-deserialization VulnCheck Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-502 Deserialization of Untrusted Data 👁 cwe source acceptance level
NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

4 change records found show changes

CVE Modified by CISA-ADP 6/17/2026 6:27:13 AM

Action Type Old Value New Value
Added SSVC 
{"timestamp":"2026-02-20T20:10:15.558719Z","id":"CVE-2026-27475","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

CVE Modified by VulnCheck 6/17/2026 6:27:13 AM

Action Type Old Value New Value
Added Affected 
[{"vendor":"SPIP","product":"SPIP","defaultStatus":"unaffected","versions":[{"version":"4.4.0","lessThan":"4.4.9","versionType":"semver","status":"affected"}]}]

Initial Analysis by NIST 2/24/2026 2:37:54 PM

Action Type Old Value New Value
Added CWE 
CWE-502
Added CPE Configuration 
OR
 *cpe:2.3:a:spip:spip:*:*:*:*:*:*:*:* versions from (including) 4.4.0 up to (excluding) 4.4.9
Added Reference Type 
VulnCheck: https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-9.html Types: Release Notes, Vendor Advisory
Added Reference Type 
VulnCheck: https://git.spip.net/spip/spip Types: Product
Added Reference Type 
VulnCheck: https://www.vulncheck.com/advisories/spip-insecure-deserialization Types: Third Party Advisory

New CVE Received from VulnCheck 2/19/2026 2:22:30 PM

Action Type Old Value New Value
Added 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.
Added CVSS V4.0 
AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Added CVSS V3.1 
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Added Reference 
https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-9.html
Added Reference 
https://git.spip.net/spip/spip
Added Reference 
https://www.vulncheck.com/advisories/spip-insecure-deserialization

Quick Info

CVE Dictionary Entry:
CVE-2026-27475
NVD Published Date:
02/19/2026
NVD Last Modified:
06/17/2026
Source:
VulnCheck