GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2025-3628 (GCVE-0-2025-3628)

Vulnerability from cvelistv5 – Published: 2025-04-25 14:42 – Updated: 2025-04-25 16:01
VLAI
Title
Moodle: moodle assignment submission search leaks anonymous student identities
Summary
A flaw has was found in Moodle where anonymous assignment submissions can be de-anonymized via search, revealing student identities.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-25 15:43 UTC
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
URL Tags
https://access.redhat.com/security/cve/CVE-2025-3628 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2359706 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version CPE status
Affected: 4.5.0 , < 4.5.4 (semver)
Date Public
2025-04-22 12:00
Credits
Red Hat would like to thank Eliot for reporting this issue.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-3628",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-25T15:43:14.123677Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-25T16:01:05.623Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://git.moodle.org",
          "defaultStatus": "unaffected",
          "packageName": "moodle",
          "versions": [
            {
              "lessThan": "4.5.4",
              "status": "affected",
              "version": "4.5.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Red Hat would like to thank Eliot for reporting this issue."
        }
      ],
      "datePublic": "2025-04-22T12:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw has was found in Moodle where anonymous assignment submissions can be de-anonymized via search, revealing student identities."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Moderate"
            },
            "type": "Red Hat severity rating"
          }
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-04-25T14:42:45.242Z",
        "orgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5",
        "shortName": "fedora"
      },
      "references": [
        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2025-3628"
        },
        {
          "name": "RHBZ#2359706",
          "tags": [
            "issue-tracking",
            "x_refsource_REDHAT"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2359706"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2025-04-15T09:43:40.253Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2025-04-22T12:00:00.000Z",
          "value": "Made public."
        }
      ],
      "title": "Moodle: moodle assignment submission search leaks anonymous student identities",
      "x_redhatCweChain": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5",
    "assignerShortName": "fedora",
    "cveId": "CVE-2025-3628",
    "datePublished": "2025-04-25T14:42:45.242Z",
    "dateReserved": "2025-04-15T09:43:34.108Z",
    "dateUpdated": "2025-04-25T16:01:05.623Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-3628",
      "date": "2026-09-17",
      "epss": "0.00317",
      "percentile": "0.24688"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-3628\",\"sourceIdentifier\":\"patrick@puiterwijk.org\",\"published\":\"2025-04-25T15:15:37.057\",\"lastModified\":\"2026-06-17T09:20:20.943\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A flaw has was found in Moodle where anonymous assignment submissions can be de-anonymized via search, revealing student identities.\"},{\"lang\":\"es\",\"value\":\"Se encontr\u00f3 una falla en Moodle que permite desanonimizar las entregas de tareas an\u00f3nimas mediante una b\u00fasqueda, revelando as\u00ed la identidad de los estudiantes.\"}],\"affected\":[{\"source\":\"patrick@puiterwijk.org\",\"affectedData\":[{\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://git.moodle.org\",\"packageName\":\"moodle\",\"versions\":[{\"version\":\"4.5.0\",\"lessThan\":\"4.5.4\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"patrick@puiterwijk.org\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N\",\"baseScore\":4.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":1.4}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2025-04-25T15:43:14.123677Z\",\"id\":\"CVE-2025-3628\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"patrick@puiterwijk.org\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-200\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.5.0\",\"versionEndExcluding\":\"4.5.4\",\"matchCriteriaId\":\"F12B5C6F-A83C-488C-9C26-3C9A61F93618\"}]}]}],\"references\":[{\"url\":\"https://access.redhat.com/security/cve/CVE-2025-3628\",\"source\":\"patrick@puiterwijk.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=2359706\",\"source\":\"patrick@puiterwijk.org\",\"tags\":[\"Issue Tracking\"]}]}}",
    "redhat_vex": {
      "current_release_date": "2026-06-28T06:49:22+00:00",
      "cve": "CVE-2025-3628",
      "id": "CVE-2025-3628",
      "initial_release_date": "2025-04-22T12:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "moodle: Moodle Assignment Submission Search Leaks Anonymous Student Identities",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-3628.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-3628\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-04-25T15:43:14.123677Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-04-25T15:43:16.152Z\"}}], \"cna\": {\"title\": \"Moodle: moodle assignment submission search leaks anonymous student identities\", \"credits\": [{\"lang\": \"en\", \"value\": \"Red Hat would like to thank Eliot for reporting this issue.\"}], \"metrics\": [{\"other\": {\"type\": \"Red Hat severity rating\", \"content\": {\"value\": \"Moderate\", \"namespace\": \"https://access.redhat.com/security/updates/classification/\"}}}, {\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 4.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"LOW\"}}], \"affected\": [{\"versions\": [{\"status\": \"affected\", \"version\": \"4.5.0\", \"lessThan\": \"4.5.4\", \"versionType\": \"semver\"}], \"packageName\": \"moodle\", \"collectionURL\": \"https://git.moodle.org\", \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2025-04-15T09:43:40.253000+00:00\", \"value\": \"Reported to Red Hat.\"}, {\"lang\": \"en\", \"time\": \"2025-04-22T12:00:00+00:00\", \"value\": \"Made public.\"}], \"datePublic\": \"2025-04-22T12:00:00.000Z\", \"references\": [{\"url\": \"https://access.redhat.com/security/cve/CVE-2025-3628\", \"tags\": [\"vdb-entry\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2359706\", \"name\": \"RHBZ#2359706\", \"tags\": [\"issue-tracking\", \"x_refsource_REDHAT\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A flaw has was found in Moodle where anonymous assignment submissions can be de-anonymized via search, revealing student identities.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-200\", \"description\": \"Exposure of Sensitive Information to an Unauthorized Actor\"}]}], \"providerMetadata\": {\"orgId\": \"92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5\", \"shortName\": \"fedora\", \"dateUpdated\": \"2025-04-25T14:42:45.242Z\"}, \"x_redhatCweChain\": \"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor\"}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-3628\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-04-25T16:01:05.623Z\", \"dateReserved\": \"2025-04-15T09:43:34.108Z\", \"assignerOrgId\": \"92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5\", \"datePublished\": \"2025-04-25T14:42:45.242Z\", \"assignerShortName\": \"fedora\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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.


Detection rules are retrieved from Rulezet.


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.