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"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.