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Vulnerability Details :

CVE-2026-27475

Summary
Assigner-VulnCheck
Assigner Org ID-83251b91-4cc7-4094-a5c7-464a1b83ea10
Published At-19 Feb, 2026 | 18:39
Updated At-19 Feb, 2026 | 18:39
Rejected At-
Credits

SPIP < 4.4.9 Insecure Deserialization

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:VulnCheck
Assigner Org ID:83251b91-4cc7-4094-a5c7-464a1b83ea10
Published At:19 Feb, 2026 | 18:39
Updated At:19 Feb, 2026 | 18:39
Rejected At:
▼CVE Numbering Authority (CNA)
SPIP < 4.4.9 Insecure Deserialization

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.

Affected Products
Vendor
SPIP
Product
SPIP
Default Status
unaffected
Versions
Affected
  • From 4.4.0 before 4.4.9 (semver)
Problem Types
TypeCWE IDDescription
CWEDeserializationDeserialization of Untrusted Data
Type: CWE
CWE ID: Deserialization
Description: Deserialization of Untrusted Data
Metrics
VersionBase scoreBase severityVector
4.09.2CRITICAL
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
3.18.1HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Version: 4.0
Base score: 9.2
Base severity: 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
Version: 3.1
Base score: 8.1
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

finder
Dorian Piette (Trachinus)
Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-9.html
vendor-advisory
patch
https://git.spip.net/spip/spip
product
https://www.vulncheck.com/advisories/spip-insecure-deserialization
third-party-advisory
Hyperlink: https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-9.html
Resource:
vendor-advisory
patch
Hyperlink: https://git.spip.net/spip/spip
Resource:
product
Hyperlink: https://www.vulncheck.com/advisories/spip-insecure-deserialization
Resource:
third-party-advisory
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:disclosure@vulncheck.com
Published At:19 Feb, 2026 | 19:22
Updated At:19 Feb, 2026 | 19:22

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.09.2CRITICAL
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/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
Primary3.18.1HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 4.0
Base score: 9.2
Base severity: 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/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
Type: Primary
Version: 3.1
Base score: 8.1
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CPE Matches

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-9.htmldisclosure@vulncheck.com
N/A
https://git.spip.net/spip/spipdisclosure@vulncheck.com
N/A
https://www.vulncheck.com/advisories/spip-insecure-deserializationdisclosure@vulncheck.com
N/A
Hyperlink: https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-9.html
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://git.spip.net/spip/spip
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://www.vulncheck.com/advisories/spip-insecure-deserialization
Source: disclosure@vulncheck.com
Resource: N/A

Change History

0
Information is not available yet

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