CVE-2026-27475

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.4.0,4.4.9)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "SPIP", "source": "cna", "vendor": "SPIP"}, "product": "spip", "vendor": "spip"}], "analysis": {"en": {"generated_at": "2026-04-16T16:48:03.510572+00:00", "value": {"mitigation_remediation": ["Upgrade the SPIP installation to version 4.4.9 or later, which removes support for serialized data in the vulnerable components.", "If an upgrade cannot be performed immediately, configure the public area to disable the table_valeur filter and the DATA iterator or otherwise strip serialized data handling from these components.", "Continuously monitor application logs for attempts to use the vulnerable filters and block any suspicious traffic, and restrict write access to the public area until the patch is applied."], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "SPIP, the content\u2011management system. All releases dated before SPIP 4.4.9 are vulnerable. No version granular detail is given beyond the pre\u20114.4.9 cutoff. The advisory lists SPIP as the sole CNA vendor/product.", "description_and_impact": "The flaw exists in SPIP versions older than 4.4.9, where the public area accepts serialized payloads through the table_valeur filter and the DATA iterator. This insecure deserialization can trigger arbitrary PHP object instantiation and, because the attacker can control the serialized content, result in code execution. The issue is aligned with CWE-502, Insecure Deserialization.", "risk_and_exploitability": "The vulnerability scores a CVSS 9.2, indicating high severity. The EPSS is below 1\u202f%, suggesting exploitation is currently unlikely, and the issue is not listed in the CISA KEV catalog. However, an attacker must first place malicious serialized data, which typically requires some level of access to the public area or an additional vulnerability to write the payload. Once the payload is processed through the exposed filter or iterator, arbitrary object instantiation and code execution can be achieved. The public nature of the affected components lowers the barrier to interaction but still demands the payload injection pre\u2011condition."}}}}, "created": "2026-02-20T10:05:55.897125+00:00", "updated": "2026-04-16T17:00:09.358730+00:00", "vendors": ["spip", "spip$PRODUCT$spip"]}