certfr_avis - certfr-2026-avi-1063

CERTFR-2026-AVI-1063

Vulnerability from certfr_avis

Une vulnérabilité a été découverte dans SPIP. Elle permet à un attaquant de provoquer une exécution de code arbitraire à distance.

L'éditeur indique que cette vulnérabilité est activement exploitée.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

	Vendor	Product	Description
	SPIP	SPIP	SPIP versions antérieures à 4.4.21

References

Title

Publication Time

Tags

Bulletin de sécurité SPIP

2026-08-20

vendor-advisory

Show details on source website

JSON

To clipboard

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "SPIP versions ant\u00e9rieures \u00e0 4.4.21",
      "product": {
        "name": "SPIP",
        "vendor": {
          "name": "SPIP",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2026-77806",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-77806"
    }
  ],
  "initial_release_date": "2026-08-21T00:00:00",
  "last_revision_date": "2026-08-24T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-1063",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-08-21T00:00:00.000000"
    },
    {
      "description": "Ajout de l\u0027identifiant CVE-2026-77806.",
      "revision_date": "2026-08-24T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
    }
  ],
  "summary": "Une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9couverte dans SPIP. Elle permet \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance.\n\nL\u0027\u00e9diteur indique que cette vuln\u00e9rabilit\u00e9 est activement exploit\u00e9e.",
  "title": "Vuln\u00e9rabilit\u00e9 dans SPIP",
  "vendor_advisories": [
    {
      "published_at": "2026-08-20",
      "title": "Bulletin de s\u00e9curit\u00e9 SPIP",
      "url": "https://blog.spip.net/Mise-a-jour-critique-de-securite-sortie-de-SPIP-4-4-21.html"
    }
  ]
}

CVE-2026-77806 (GCVE-0-2026-77806)

Vulnerability from cvelistv5

Published

2026-08-21 13:37

Modified

2026-08-21 17:43

Severity ?

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-94 - Improper Control of Generation of Code ('Code Injection')

Summary

SPIP before 4.4.21 allows unauthenticated remote attackers to execute arbitrary code, as exploited in the wild in August 2026. This is related to code injection via an X-Spip-Filtre HTTP request header that is mishandled by analyse_resultat_skel.

References

URL

Tags

	https://github.com/rapid7/metasploit-framework/pull/21790
	https://github.com/rapid7/metasploit-framework/pull/21790#issuecomment-5368038123
	https://blog.spip.net/Mise-a-jour-critique-de-securite-sortie-de-SPIP-4-4-21.html
	https://github.com/rapid7/metasploit-framework/pull/21790/commits/b16eca819abb8f1401f21d115e71e3dfc67b847c

Impacted products

	Vendor	Product	Version
	SPIP	SPIP	Version: 0 ≤

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-77806",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-21T17:43:22.719145Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-21T17:43:56.771Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "SPIP",
          "vendor": "SPIP",
          "versions": [
            {
              "lessThan": "4.4.21",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:spip:spip:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.4.21",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "SPIP before 4.4.21 allows unauthenticated remote attackers to execute arbitrary code, as exploited in the wild in August 2026. This is related to code injection via an X-Spip-Filtre HTTP request header that is mishandled by analyse_resultat_skel."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-94",
              "description": "CWE-94 Improper Control of Generation of Code (\u0027Code Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-21T13:37:43.289Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/rapid7/metasploit-framework/pull/21790"
        },
        {
          "url": "https://github.com/rapid7/metasploit-framework/pull/21790#issuecomment-5368038123"
        },
        {
          "url": "https://blog.spip.net/Mise-a-jour-critique-de-securite-sortie-de-SPIP-4-4-21.html"
        },
        {
          "url": "https://github.com/rapid7/metasploit-framework/pull/21790/commits/b16eca819abb8f1401f21d115e71e3dfc67b847c"
        }
      ],
      "x_generator": {
        "engine": "CVE-Request-form 0.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2026-77806",
    "datePublished": "2026-08-21T13:37:43.289Z",
    "dateReserved": "2026-08-21T13:37:42.646Z",
    "dateUpdated": "2026-08-21T17:43:56.771Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

CERTFR-2026-AVI-1063

Vulnerability from certfr_avis

Solutions

CVE-2026-77806 (GCVE-0-2026-77806)

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature