CVE-2026-32931 (GCVE-0-2026-32931)

Vulnerability from cvelistv5 – Published: 2026-04-10 17:50 – Updated: 2026-04-15 14:56
VLAI?
Title
Chamilo LMS has Arbitrary File Upload via MIME-Only Validation in Exercise Sound Upload Leads to RCE
Summary
Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, an unrestricted file upload vulnerability in the exercise sound upload function allows an authenticated teacher to upload a PHP webshell by spoofing the Content-Type header to audio/mpeg. The uploaded file retains its original .php extension and is placed in a web-accessible directory, enabling Remote Code Execution as the web server user (www-data). This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
chamilo chamilo-lms Affected: < 1.11.38
Affected: >= 2.0.0-alpha.1, < 2.0.0-RC.3
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-32931",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-15T14:52:59.648858Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-15T14:56:10.732Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "chamilo-lms",
          "vendor": "chamilo",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.11.38"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.0.0-alpha.1, \u003c 2.0.0-RC.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, an unrestricted file upload vulnerability in the exercise sound upload function allows an authenticated teacher to upload a PHP webshell by spoofing the Content-Type header to audio/mpeg. The uploaded file retains its original .php extension and is placed in a web-accessible directory, enabling Remote Code Execution as the web server user (www-data). This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-434",
              "description": "CWE-434: Unrestricted Upload of File with Dangerous Type",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-10T17:50:40.176Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-863j-h6pf-3xhx",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-863j-h6pf-3xhx"
        },
        {
          "name": "https://github.com/chamilo/chamilo-lms/commit/8cbe660de267f2b6ed625433bdfcf38dee8752b4",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/chamilo/chamilo-lms/commit/8cbe660de267f2b6ed625433bdfcf38dee8752b4"
        },
        {
          "name": "https://github.com/chamilo/chamilo-lms/commit/d5ef5153df3d1b2de112cbeb190cdd10bea457f3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/chamilo/chamilo-lms/commit/d5ef5153df3d1b2de112cbeb190cdd10bea457f3"
        }
      ],
      "source": {
        "advisory": "GHSA-863j-h6pf-3xhx",
        "discovery": "UNKNOWN"
      },
      "title": "Chamilo LMS has Arbitrary File Upload via MIME-Only Validation in Exercise Sound Upload Leads to RCE"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-32931",
    "datePublished": "2026-04-10T17:50:40.176Z",
    "dateReserved": "2026-03-17T00:05:53.282Z",
    "dateUpdated": "2026-04-15T14:56:10.732Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-32931",
      "date": "2026-04-16",
      "epss": "0.00177",
      "percentile": "0.39268"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-32931\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-04-10T18:16:42.430\",\"lastModified\":\"2026-04-13T15:02:06.187\",\"vulnStatus\":\"Undergoing Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, an unrestricted file upload vulnerability in the exercise sound upload function allows an authenticated teacher to upload a PHP webshell by spoofing the Content-Type header to audio/mpeg. The uploaded file retains its original .php extension and is placed in a web-accessible directory, enabling Remote Code Execution as the web server user (www-data). This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.6,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-434\"}]}],\"references\":[{\"url\":\"https://github.com/chamilo/chamilo-lms/commit/8cbe660de267f2b6ed625433bdfcf38dee8752b4\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/chamilo/chamilo-lms/commit/d5ef5153df3d1b2de112cbeb190cdd10bea457f3\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-863j-h6pf-3xhx\",\"source\":\"security-advisories@github.com\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-32931\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-15T14:52:59.648858Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-15T14:56:05.726Z\"}}], \"cna\": {\"title\": \"Chamilo LMS has Arbitrary File Upload via MIME-Only Validation in Exercise Sound Upload Leads to RCE\", \"source\": {\"advisory\": \"GHSA-863j-h6pf-3xhx\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"chamilo\", \"product\": \"chamilo-lms\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 1.11.38\"}, {\"status\": \"affected\", \"version\": \"\u003e= 2.0.0-alpha.1, \u003c 2.0.0-RC.3\"}]}], \"references\": [{\"url\": \"https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-863j-h6pf-3xhx\", \"name\": \"https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-863j-h6pf-3xhx\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/chamilo/chamilo-lms/commit/8cbe660de267f2b6ed625433bdfcf38dee8752b4\", \"name\": \"https://github.com/chamilo/chamilo-lms/commit/8cbe660de267f2b6ed625433bdfcf38dee8752b4\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/chamilo/chamilo-lms/commit/d5ef5153df3d1b2de112cbeb190cdd10bea457f3\", \"name\": \"https://github.com/chamilo/chamilo-lms/commit/d5ef5153df3d1b2de112cbeb190cdd10bea457f3\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, an unrestricted file upload vulnerability in the exercise sound upload function allows an authenticated teacher to upload a PHP webshell by spoofing the Content-Type header to audio/mpeg. The uploaded file retains its original .php extension and is placed in a web-accessible directory, enabling Remote Code Execution as the web server user (www-data). This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-434\", \"description\": \"CWE-434: Unrestricted Upload of File with Dangerous Type\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-04-10T17:50:40.176Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-32931\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-15T14:56:10.732Z\", \"dateReserved\": \"2026-03-17T00:05:53.282Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-04-10T17:50:40.176Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.



Detection rules are retrieved from Rulezet.