FKIE_CVE-2025-6518

Vulnerability from fkie_nvd - Published: 2025-06-23 19:15 - Updated: 2026-06-17 10:02
Severity
6.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Summary
A vulnerability was found in PySpur-Dev pyspur up to 0.1.18. It has been classified as critical. Affected is the function SingleLLMCallNode of the file backend/pyspur/nodes/llm/single_llm_call.py of the component Jinja2 Template Handler. The manipulation of the argument user_message leads to improper neutralization of special elements used in a template engine. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
References
cna@vuldb.comhttps://github.com/PySpur-Dev/pyspur/issues/289
cna@vuldb.comhttps://vuldb.com/?ctiid.313638
cna@vuldb.comhttps://vuldb.com/?id.313638
cna@vuldb.comhttps://vuldb.com/?submit.593612
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "modules": [
            "Jinja2 Template Handler"
          ],
          "product": "pyspur",
          "vendor": "PySpur-Dev",
          "versions": [
            {
              "status": "affected",
              "version": "0.1.0"
            },
            {
              "status": "affected",
              "version": "0.1.1"
            },
            {
              "status": "affected",
              "version": "0.1.2"
            },
            {
              "status": "affected",
              "version": "0.1.3"
            },
            {
              "status": "affected",
              "version": "0.1.4"
            },
            {
              "status": "affected",
              "version": "0.1.5"
            },
            {
              "status": "affected",
              "version": "0.1.6"
            },
            {
              "status": "affected",
              "version": "0.1.7"
            },
            {
              "status": "affected",
              "version": "0.1.8"
            },
            {
              "status": "affected",
              "version": "0.1.9"
            },
            {
              "status": "affected",
              "version": "0.1.10"
            },
            {
              "status": "affected",
              "version": "0.1.11"
            },
            {
              "status": "affected",
              "version": "0.1.12"
            },
            {
              "status": "affected",
              "version": "0.1.13"
            },
            {
              "status": "affected",
              "version": "0.1.14"
            },
            {
              "status": "affected",
              "version": "0.1.15"
            },
            {
              "status": "affected",
              "version": "0.1.16"
            },
            {
              "status": "affected",
              "version": "0.1.17"
            },
            {
              "status": "affected",
              "version": "0.1.18"
            }
          ]
        }
      ],
      "source": "cna@vuldb.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability was found in PySpur-Dev pyspur up to 0.1.18. It has been classified as critical. Affected is the function SingleLLMCallNode of the file backend/pyspur/nodes/llm/single_llm_call.py of the component Jinja2 Template Handler. The manipulation of the argument user_message leads to improper neutralization of special elements used in a template engine. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 una vulnerabilidad en PySpur-Dev pyspur (hasta la versi\u00f3n 0.1.18). Se ha clasificado como cr\u00edtica. La funci\u00f3n SingleLLMCallNode del archivo backend/pyspur/nodes/llm/single_llm_call.py del componente Jinja2 Template Handler se ve afectada. La manipulaci\u00f3n del argumento user_message provoca la neutralizaci\u00f3n incorrecta de elementos especiales utilizados en un motor de plantillas. Es posible ejecutar el ataque de forma remota. Se ha hecho p\u00fablico el exploit y puede que sea utilizado."
    }
  ],
  "id": "CVE-2025-6518",
  "lastModified": "2026-06-17T10:02:03.763",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "cna@vuldb.com",
        "type": "Secondary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.4,
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 2.1,
          "baseSeverity": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "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": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "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:P/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": "LOW",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-6518",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-06-23T19:25:21.263632Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-06-23T19:15:25.007",
  "references": [
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/PySpur-Dev/pyspur/issues/289"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/?ctiid.313638"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/?id.313638"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/?submit.593612"
    }
  ],
  "sourceIdentifier": "cna@vuldb.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-791"
        },
        {
          "lang": "en",
          "value": "CWE-1336"
        }
      ],
      "source": "cna@vuldb.com",
      "type": "Secondary"
    }
  ]
}



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