CVE-2026-27746

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When a victim is induced to visit a crafted URL, the injected content is reflected into the response and executed in the victim's browser context."}, {"lang": "es", "value": "Las versiones del plugin SPIP jeux anteriores a la 4.1.1 contienen una vulnerabilidad de cross-site scripting (XSS) reflejado en el pipeline pre_propre. El plugin incorpora par\u00e1metros de solicitud no confiables en la salida HTML sin una codificaci\u00f3n de salida adecuada, lo que permite a los atacantes inyectar contenido de script arbitrario en p\u00e1ginas que renderizan un bloque jeux. Cuando se induce a una v\u00edctima a visitar una URL manipulada, el contenido inyectado se refleja en la respuesta y se ejecuta en el contexto del navegador de la v\u00edctima."}], "id": "CVE-2026-27746", "lastModified": "2026-06-17T10:27:37.333", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "disclosure@vulncheck.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.1, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "userInteraction": "ACTIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-27746", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-02-25T15:49:54.287789Z", "version": "2.0.3"}}]}, "published": "2026-02-25T04:16:05.320", "references": [{"source": "disclosure@vulncheck.com", "tags": ["Release Notes"], "url": "https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-10.html"}, {"source": "disclosure@vulncheck.com", "tags": ["Third Party Advisory"], "url": "https://chocapikk.com/posts/2026/spip-plugins-vulnerabilities/"}, {"source": "disclosure@vulncheck.com", "tags": ["Patch"], "url": "https://git.spip.net/spip-contrib-extensions/jeux/-/commit/3d240cffb258491acd72f8b37579e8a7417740ff"}, {"source": "disclosure@vulncheck.com", "tags": ["Product"], "url": "https://plugins.spip.net/jeux"}, {"source": "disclosure@vulncheck.com", "tags": ["Third Party Advisory"], "url": "https://www.vulncheck.com/advisories/spip-jeux-reflected-xss-via-index-parameters"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.1.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "jeux", "source": "cna", "vendor": "SPIP"}, "product": "jeux", "vendor": "spip"}], "analysis": {"en": {"generated_at": "2026-04-16T16:16:00.932363+00:00", "value": {"mitigation_remediation": ["Update the SPIP jeux plug\u2011in to version\u202f4.1.1 or newer, which removes the reflected XSS flaw.", "If an upgrade cannot be performed immediately, disable or remove the jeux block from pages that render user\u2011controlled index parameters to prevent script injection.", "Verify that any custom templates or extensions that use the index parameters are coded to apply proper output escaping, such as converting special characters to HTML entities before insertion."], "summary": {"action": "Patch Immediate", "impact": "Reflected Cross\u2011Site Scripting"}, "threat_synthesis": {"affected_systems": "Systems running the SPIP jeux plug\u2011in with a version earlier than 4.1.1 are vulnerable. The anti\u2011template pre_propre pipeline in these versions fails to perform proper output encoding before embedding user\u2011supplied parameters into HTML. The vulnerability is specific to the jeu block rendering within SPIP sites.", "description_and_impact": "The SPIP jeux plugin versions earlier than 4.1.1 allow reflected cross\u2011site scripting. A malicious actor can include arbitrary script code in untrusted request parameters that are incorporated into the output during the pre_propre pipeline. The injected code is then reflected directly into the HTML served to a victim, executing in the victim\u2019s browser and enabling malicious actions such as phishing or cookie theft.", "risk_and_exploitability": "The CVSS score of 5.1 indicates moderate severity, while the EPSS score of less than\u202f1\u202f% suggests a very low probability of real\u2011world exploitation. The vulnerability is not listed in CISA\u2019s KEV catalog. Attackers would need to craft a URL or input containing malicious payloads that target the index parameters used by the plugin; the reflected script then runs with the victim\u2019s browser privileges, potentially compromising user sessions or data. The risk level remains moderate, but the low exploitation likelihood limits immediate threat unless an attacker actively leverages this vector."}}}}, "created": "2026-02-25T11:34:50.887312+00:00", "updated": "2026-04-16T16:30:15.919547+00:00", "vendors": ["spip", "spip$PRODUCT$jeux"]}