FKIE_CVE-2026-26744

Vulnerability from fkie_nvd - Published: 2026-02-19 22:16 - Updated: 2026-02-26 02:48
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Summary
A user enumeration vulnerability exists in FormaLMS 4.1.18 and below in the password recovery functionality accessible via the /lostpwd endpoint. The application returns different error messages for valid and invalid usernames allowing an unauthenticated attacker to determine which usernames are registered in the system through observable response discrepancy.
References
cve@mitre.orghttps://github.com/formalms/formalms.gitProduct
cve@mitre.orghttps://github.com/lorenzobruno7/CVE-2026-26744Third Party Advisory
Impacted products
Vendor Product Version
formalms formalms *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:formalms:formalms:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C0D5CBAB-4A63-4E23-8F70-561875E39DDF",
              "versionEndIncluding": "4.1.18",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A user enumeration vulnerability exists in FormaLMS 4.1.18 and below in the password recovery functionality accessible via the /lostpwd endpoint. The application returns different error messages for valid and invalid usernames allowing an unauthenticated attacker to determine which usernames are registered in the system through observable response discrepancy."
    },
    {
      "lang": "es",
      "value": "Hay una vulnerabilidad de enumeraci\u00f3n de usuarios en FormaLMS 4.1.18 y versiones anteriores en la funcionalidad de recuperaci\u00f3n de contrase\u00f1a accesible a trav\u00e9s del endpoint /lostpwd. La aplicaci\u00f3n devuelve mensajes de error diferentes para nombres de usuario v\u00e1lidos e inv\u00e1lidos, permitiendo a un atacante no autenticado determinar qu\u00e9 nombres de usuario est\u00e1n registrados en el sistema a trav\u00e9s de la discrepancia observable en la respuesta."
    }
  ],
  "id": "CVE-2026-26744",
  "lastModified": "2026-02-26T02:48:23.430",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-02-19T22:16:47.627",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Product"
      ],
      "url": "https://github.com/formalms/formalms.git"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/lorenzobruno7/CVE-2026-26744"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-204"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.