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CVE-2026-109519

Status: DeferredMedium (6.9)—PoC
Severity6.9Medium · CVSS 4.0
Exploitation probability0.72 %higher than 53% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitAvailableProof of concept on GitHub (unverified)

A vulnerability was detected in YouTransfer up to 0.0.7/1.0.6/1.1.0. Affected is an unknown function of the file /settings/template of the component Template Rendering. The manipulation results in path traversal. The attack may be launched remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS

Base score
6.9
Version
4.0
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/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

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
0.72 %
Percentile among all scored CVEs
53
Score date
10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

⚠️ GitHub proofs of concept are not verified: some are fake or contain malware. Never run them outside an isolated lab.

ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

Path traversal (CWE-22) en /settings/template explotable remotamente sin privilegios ni interacción (AV:N/PR:N/UI:N); el texto no menciona ejecución de comandos, solo traversal de rutas.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

ATT&CK mitigations that cover these techniques

Vulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkFilter Network TrafficApplication Isolation and Sandboxing

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Youtransfer — YoutransferAI

CWEs

References

Show 6 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-109519",
  "cveTags": [],
  "metrics": {
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          "role": "CISA Coordinator",
          "options": [
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              "automatable": "yes"
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            {
              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2026-10-14T14:24:17.989628Z"
        }
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
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    "cvssMetricV31": [
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    "cvssMetricV40": [
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          "exploitMaturity": "NOT_DEFINED",
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          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
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          "vulnAvailabilityImpact": "LOW",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
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          "subConfidentialityImpact": "LOW",
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          "modifiedAttackRequirements": "NOT_DEFINED",
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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  "affected": [
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      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:youtransfer:youtransfer:*:*:*:*:*:*:*:*"
          ],
          "vendor": "n/a",
          "modules": [
            "Template Rendering"
          ],
          "product": "YouTransfer",
          "versions": [
            {
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              "version": "0.0.1"
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            {
              "status": "affected",
              "version": "0.0.2"
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            {
              "status": "affected",
              "version": "0.0.3"
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            {
              "status": "affected",
              "version": "0.0.4"
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            {
              "status": "affected",
              "version": "0.0.5"
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            {
              "status": "affected",
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            {
              "status": "affected",
              "version": "0.0.7"
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              "status": "affected",
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              "status": "affected",
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              "status": "affected",
              "version": "1.0.4"
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            {
              "status": "affected",
              "version": "1.0.5"
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            {
              "status": "affected",
              "version": "1.0.6"
            },
            {
              "status": "affected",
              "version": "1.1.0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-10-13T14:17:26.583",
  "references": [
    {
      "url": "https://github.com/0xgh0stri13y/CVE-2026-109519/",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://github.com/0xgh0stri13y/CVE-2026-109519/blob/main/POC/exploit.py",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/cve/CVE-2026-109519",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/submit/983611",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/vuln/417175",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/vuln/417175/cti",
      "source": "cna@vuldb.com"
    }
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  "vulnStatus": "Deferred",
  "weaknesses": [
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      "source": "cna@vuldb.com",
      "description": [
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          "value": "CWE-22"
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  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability was detected in YouTransfer up to 0.0.7/1.0.6/1.1.0. Affected is an unknown function of the file /settings/template of the component Template Rendering. The manipulation results in path traversal. The attack may be launched remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way."
    }
  ],
  "lastModified": "2026-10-14T15:17:06.690",
  "sourceIdentifier": "cna@vuldb.com"
}