← Back to CVE Explorer

CVE-2025-11346

Full vulnerability record from the local CVENow database.

Description

A vulnerability has been found in ILIAS up to 8.23/9.13/10.1. This affects the function unserialize of the component Base64 Decoding Handler. Such manipulation of the argument f_settings leads to deserialization. It is possible to launch the attack remotely. Upgrading to version 8.24, 9.14 and 10.2 is able to mitigate this issue. It is advisable to upgrade the affected component.

Severity
MEDIUM
CVSS score
5.3 (v4.0)
Vulnerability status
Modified
Source identifier
Published
2025-10-06 20:15:35.313000
Last modified
2026-10-19 16:10:00.260000
View original CVE JSON
{
  "id": "CVE-2025-11346",
  "sourceIdentifier": "[email protected]",
  "published": "2025-10-06T20:15:35.313",
  "lastModified": "2026-10-19T16:10:00.260",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability has been found in ILIAS up to 8.23/9.13/10.1. This affects the function unserialize of the component Base64 Decoding Handler. Such manipulation of the argument f_settings leads to deserialization. It is possible to launch the attack remotely. Upgrading to version 8.24, 9.14 and 10.2 is able to mitigate this issue. It is advisable to upgrade the affected component."
    },
    {
      "lang": "es",
      "value": "Se ha encontrado una vulnerabilidad en ILIAS hasta 8.23/9.13/10.1. Esto afecta a la función unserialize del componente Gestor de Decodificación Base64. Dicha manipulación del argumento f_settings conduce a deserialización. Es posible lanzar el ataque remotamente. La actualización a la versión 8.24, 9.14 y 10.2 puede mitigar este problema. Es aconsejable actualizar el componente afectado."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "ILIAS",
          "cpes": [
            "cpe:2.3:a:ilias:ilias:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "Base64 Decoding Handler"
          ],
          "versions": [
            {
              "version": "8.0",
              "status": "affected"
            },
            {
              "version": "8.1",
              "status": "affected"
            },
            {
              "version": "8.2",
              "status": "affected"
            },
            {
              "version": "8.3",
              "status": "affected"
            },
            {
              "version": "8.4",
              "status": "affected"
            },
            {
              "version": "8.5",
              "status": "affected"
            },
            {
              "version": "8.6",
              "status": "affected"
            },
            {
              "version": "8.7",
              "status": "affected"
            },
            {
              "version": "8.8",
              "status": "affected"
            },
            {
              "version": "8.9",
              "status": "affected"
            },
            {
              "version": "8.10",
              "status": "affected"
            },
            {
              "version": "8.11",
              "status": "affected"
            },
            {
              "version": "8.12",
              "status": "affected"
            },
            {
              "version": "8.13",
              "status": "affected"
            },
            {
              "version": "8.14",
              "status": "affected"
            },
            {
              "version": "8.15",
              "status": "affected"
            },
            {
              "version": "8.16",
              "status": "affected"
            },
            {
              "version": "8.17",
              "status": "affected"
            },
            {
              "version": "8.18",
              "status": "affected"
            },
            {
              "version": "8.19",
              "status": "affected"
            },
            {
              "version": "8.20",
              "status": "affected"
            },
            {
              "version": "8.21",
              "status": "affected"
            },
            {
              "version": "8.22",
              "status": "affected"
            },
            {
              "version": "8.23",
              "status": "affected"
            },
            {
              "version": "9.0",
              "status": "affected"
            },
            {
              "version": "9.1",
              "status": "affected"
            },
            {
              "version": "9.2",
              "status": "affected"
            },
            {
              "version": "9.3",
              "status": "affected"
            },
            {
              "version": "9.4",
              "status": "affected"
            },
            {
              "version": "9.5",
              "status": "affected"
            },
            {
              "version": "9.6",
              "status": "affected"
            },
            {
              "version": "9.7",
              "status": "affected"
            },
            {
              "version": "9.8",
              "status": "affected"
            },
            {
              "version": "9.9",
              "status": "affected"
            },
            {
              "version": "9.10",
              "status": "affected"
            },
            {
              "version": "9.11",
              "status": "affected"
            },
            {
              "version": "9.12",
              "status": "affected"
            },
            {
              "version": "9.13",
              "status": "affected"
            },
            {
              "version": "10.0",
              "status": "affected"
            },
            {
              "version": "10.1",
              "status": "affected"
            },
            {
              "version": "8.24",
              "status": "unaffected"
            },
            {
              "version": "9.14",
              "status": "unaffected"
            },
            {
              "version": "10.2",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/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",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnAvailabilityImpact": "LOW",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.4
      },
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "baseScore": 6.5,
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "SINGLE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.0,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2025-10-06T19:42:14.241299Z",
          "id": "CVE-2025-11346",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:ilias:ilias:8.23:*:*:*:*:*:*:*",
              "matchCriteriaId": "58F9FBA3-89C9-4EC7-9913-770F9C71A569"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:ilias:ilias:9.13:*:*:*:*:*:*:*",
              "matchCriteriaId": "BE5461D9-97C8-4DEE-8E3D-AAEE8840A209"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:ilias:ilias:10.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "B4E16B93-654E-47D4-A498-C759D1F4B1EB"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://vuldb.com/?ctiid.327231",
      "source": "[email protected]",
      "tags": [
        "Permissions Required",
        "VDB Entry"
      ]
    },
    {
      "url": "https://vuldb.com/?id.327231",
      "source": "[email protected]",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "https://vuldb.com/?submit.664892",
      "source": "[email protected]",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-2113",
      "source": "[email protected]",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://srlabs.de/blog/breaking-ilias-part-2-three-to-rce",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}