CVE-2026-27475

published 2026-02-19

CVE-2026-27475: 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…

Priority P3 56 high 8.1 CVSS 3.1

AV N AC H PR N UI N S U C H I H A H

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

4 ranges

Vendor	Product	Version range	Fixed in
debian	spip	< spip 4.4.9+dfsg-1 (forky)	spip 4.4.9+dfsg-1 (forky)
spip	spip	>= 0 < 4.4.11+dfsg-0+deb13u1	4.4.11+dfsg-0+deb13u1
spip	spip	>= 0 < 4.4.9+dfsg-1	4.4.9+dfsg-1
spip	spip	>= 4.4.0 < 4.4.9	4.4.9

CVSS provenance

nvd v3.1 8.1 HIGH CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd v4.0 9.2 CRITICAL 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

osv 9.2 CRITICAL

vendor_debian 9.2 CRITICAL

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CWE-502