CVE-2025-67851 (GCVE-0-2025-67851)
Vulnerability from cvelistv5 – Published: 2026-02-03 10:52 – Updated: 2026-02-03 17:02
VLAI?
Title
Moodle: moodle: formula injection allows arbitrary formula execution via unescaped data export
Summary
A flaw was found in moodle. This formula injection vulnerability occurs when data fields are exported without proper escaping. A remote attacker could exploit this by providing malicious data that, when exported and opened in a spreadsheet, allows arbitrary formulas to execute. This can lead to compromised data integrity and unintended operations within the spreadsheet.
Severity ?
6.1 (Medium)
CWE
- CWE-1236 - Improper Neutralization of Formula Elements in a CSV File
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
Credits
Red Hat would like to thank Brendan Heywood for reporting this issue.
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-67851",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-02-03T17:02:36.235220Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-02-03T17:02:43.231Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://github.com/moodle/moodle/",
"defaultStatus": "unaffected",
"packageName": "moodle",
"versions": [
{
"lessThan": "4.1.22",
"status": "affected",
"version": "4.1.0",
"versionType": "semver"
},
{
"lessThan": "4.4.12",
"status": "affected",
"version": "4.4.0",
"versionType": "semver"
},
{
"lessThan": "4.5.8",
"status": "affected",
"version": "4.5.0",
"versionType": "semver"
},
{
"lessThan": "5.0.4",
"status": "affected",
"version": "5.0.0",
"versionType": "semver"
},
{
"lessThan": "5.1.1",
"status": "affected",
"version": "5.1.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Red Hat would like to thank Brendan Heywood for reporting this issue."
}
],
"datePublic": "2025-12-15T04:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in moodle. This formula injection vulnerability occurs when data fields are exported without proper escaping. A remote attacker could exploit this by providing malicious data that, when exported and opened in a spreadsheet, allows arbitrary formulas to execute. This can lead to compromised data integrity and unintended operations within the spreadsheet."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Moderate"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-1236",
"description": "Improper Neutralization of Formula Elements in a CSV File",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-02-03T10:52:06.974Z",
"orgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5",
"shortName": "fedora"
},
"references": [
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2025-67851"
},
{
"name": "RHBZ#2423841",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2423841"
},
{
"url": "https://moodle.org/mod/forum/discuss.php?d=471301"
}
],
"timeline": [
{
"lang": "en",
"time": "2025-12-19T12:09:09.750000+00:00",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2025-12-15T04:00:00+00:00",
"value": "Made public."
}
],
"title": "Moodle: moodle: formula injection allows arbitrary formula execution via unescaped data export",
"x_redhatCweChain": "CWE-1236: Improper Neutralization of Formula Elements in a CSV File"
}
},
"cveMetadata": {
"assignerOrgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5",
"assignerShortName": "fedora",
"cveId": "CVE-2025-67851",
"datePublished": "2026-02-03T10:52:06.974Z",
"dateReserved": "2025-12-12T13:00:24.330Z",
"dateUpdated": "2026-02-03T17:02:43.231Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-67851\",\"sourceIdentifier\":\"patrick@puiterwijk.org\",\"published\":\"2026-02-03T11:15:55.367\",\"lastModified\":\"2026-02-03T16:44:03.343\",\"vulnStatus\":\"Undergoing Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A flaw was found in moodle. This formula injection vulnerability occurs when data fields are exported without proper escaping. A remote attacker could exploit this by providing malicious data that, when exported and opened in a spreadsheet, allows arbitrary formulas to execute. This can lead to compromised data integrity and unintended operations within the spreadsheet.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"patrick@puiterwijk.org\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L\",\"baseScore\":6.1,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":1.3,\"impactScore\":4.7}]},\"weaknesses\":[{\"source\":\"patrick@puiterwijk.org\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-1236\"}]}],\"references\":[{\"url\":\"https://access.redhat.com/security/cve/CVE-2025-67851\",\"source\":\"patrick@puiterwijk.org\"},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=2423841\",\"source\":\"patrick@puiterwijk.org\"},{\"url\":\"https://moodle.org/mod/forum/discuss.php?d=471301\",\"source\":\"patrick@puiterwijk.org\"}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-67851\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-02-03T17:02:36.235220Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-02-03T17:02:40.393Z\"}}], \"cna\": {\"title\": \"Moodle: moodle: formula injection allows arbitrary formula execution via unescaped data export\", \"credits\": [{\"lang\": \"en\", \"value\": \"Red Hat would like to thank Brendan Heywood 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\": 6.1, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"LOW\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"LOW\"}}], \"affected\": [{\"versions\": [{\"status\": \"affected\", \"version\": \"4.1.0\", \"lessThan\": \"4.1.22\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"4.4.0\", \"lessThan\": \"4.4.12\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"4.5.0\", \"lessThan\": \"4.5.8\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"5.0.0\", \"lessThan\": \"5.0.4\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"5.1.0\", \"lessThan\": \"5.1.1\", \"versionType\": \"semver\"}], \"packageName\": \"moodle\", \"collectionURL\": \"https://github.com/moodle/moodle/\", \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2025-12-19T12:09:09.750000+00:00\", \"value\": \"Reported to Red Hat.\"}, {\"lang\": \"en\", \"time\": \"2025-12-15T04:00:00+00:00\", \"value\": \"Made public.\"}], \"datePublic\": \"2025-12-15T04:00:00.000Z\", \"references\": [{\"url\": \"https://access.redhat.com/security/cve/CVE-2025-67851\", \"tags\": [\"vdb-entry\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2423841\", \"name\": \"RHBZ#2423841\", \"tags\": [\"issue-tracking\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://moodle.org/mod/forum/discuss.php?d=471301\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A flaw was found in moodle. This formula injection vulnerability occurs when data fields are exported without proper escaping. A remote attacker could exploit this by providing malicious data that, when exported and opened in a spreadsheet, allows arbitrary formulas to execute. This can lead to compromised data integrity and unintended operations within the spreadsheet.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-1236\", \"description\": \"Improper Neutralization of Formula Elements in a CSV File\"}]}], \"providerMetadata\": {\"orgId\": \"92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5\", \"shortName\": \"fedora\", \"dateUpdated\": \"2026-02-03T10:52:06.974Z\"}, \"x_redhatCweChain\": \"CWE-1236: Improper Neutralization of Formula Elements in a CSV File\"}}",
"cveMetadata": "{\"cveId\": \"CVE-2025-67851\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-02-03T17:02:43.231Z\", \"dateReserved\": \"2025-12-12T13:00:24.330Z\", \"assignerOrgId\": \"92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5\", \"datePublished\": \"2026-02-03T10:52:06.974Z\", \"assignerShortName\": \"fedora\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
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.
Loading…
Loading…