CVE-2026-72549 (GCVE-0-2026-72549)
Vulnerability from cvelistv5
Published
2026-08-11 11:10
Modified
2026-08-11 15:09
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Summary
An information disclosure vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to map any email address or username to its internal user objectId via the getUserId Parse cloud function. The function performs no authentication before resolving and returning the internal identifier. An attacker can use this to enumerate user accounts and target subsequent attacks.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| OpenSignLabs | OpenSign |
Version: 0 < |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-72549",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-11T15:09:06.730884Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-11T15:09:18.816Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "OpenSign",
"vendor": "OpenSignLabs",
"versions": [
{
"lessThanOrEqual": "2.37.0",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Bobur Abdugafforov (Mahadsec)"
}
],
"descriptions": [
{
"lang": "en",
"value": "An information disclosure vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to map any email address or username to its internal user objectId via the getUserId Parse cloud function. The function performs no authentication before resolving and returning the internal identifier. An attacker can use this to enumerate user accounts and target subsequent attacks."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-200",
"description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-11T11:10:11.231Z",
"orgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
"shortName": "TuranSec"
},
"references": [
{
"name": "Project Repository",
"url": "https://github.com/OpenSignLabs/OpenSign"
}
],
"title": "OpenSignLabs OpenSign - Information Disclosure"
}
},
"cveMetadata": {
"assignerOrgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
"assignerShortName": "TuranSec",
"cveId": "CVE-2026-72549",
"datePublished": "2026-08-11T11:10:11.231Z",
"dateReserved": "2026-08-10T10:32:49.081Z",
"dateUpdated": "2026-08-11T15:09:18.816Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-72549\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-11T15:09:06.730884Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-11T15:09:14.217Z\"}}], \"cna\": {\"title\": \"OpenSignLabs OpenSign - Information Disclosure\", \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Bobur Abdugafforov (Mahadsec)\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"OpenSignLabs\", \"product\": \"OpenSign\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"2.37.0\"}]}], \"references\": [{\"url\": \"https://github.com/OpenSignLabs/OpenSign\", \"name\": \"Project Repository\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"An information disclosure vulnerability in OpenSignLabs OpenSign through 2.37.0 allows unauthenticated remote attackers to map any email address or username to its internal user objectId via the getUserId Parse cloud function. The function performs no authentication before resolving and returning the internal identifier. An attacker can use this to enumerate user accounts and target subsequent attacks.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-200\", \"description\": \"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor\"}]}], \"providerMetadata\": {\"orgId\": \"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c\", \"shortName\": \"TuranSec\", \"dateUpdated\": \"2026-08-11T11:10:11.231Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-72549\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-11T15:09:18.816Z\", \"dateReserved\": \"2026-08-10T10:32:49.081Z\", \"assignerOrgId\": \"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c\", \"datePublished\": \"2026-08-11T11:10:11.231Z\", \"assignerShortName\": \"TuranSec\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…