Flowsint is an open-source OSINT graph exploration tool designed for cybersecurity investigation, transparency, and verification. Prior to 1.2.3, a remote attacker can create a map node with a malicious label that contains arbitrary HTML. When the map tab is selected and a map node marker is selected, it will render the arbitrary HTML, potentially triggering stored XSS. This vulnerability is fixed in 1.2.3.
PUBLISHED5.2CWE-79
Flowsint: Stored XSS on map node marker in map page
Problem type
Affected products
reconurge
flowsint
< 1.2.3 - AFFECTED
References
JSON source
https://cveawg.mitre.org/api/cve/CVE-2026-42157Click to expand
{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-42157",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"dateUpdated": "2026-05-12T22:58:26.279Z",
"dateReserved": "2026-04-24T17:15:21.835Z",
"datePublished": "2026-05-12T22:58:26.279Z",
"state": "PUBLISHED"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-05-12T22:58:26.279Z"
},
"title": "Flowsint: Stored XSS on map node marker in map page",
"descriptions": [
{
"lang": "en",
"value": "Flowsint is an open-source OSINT graph exploration tool designed for cybersecurity investigation, transparency, and verification. Prior to 1.2.3, a remote attacker can create a map node with a malicious label that contains arbitrary HTML. When the map tab is selected and a map node marker is selected, it will render the arbitrary HTML, potentially triggering stored XSS. This vulnerability is fixed in 1.2.3."
}
],
"affected": [
{
"vendor": "reconurge",
"product": "flowsint",
"versions": [
{
"version": "< 1.2.3",
"status": "affected"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
"cweId": "CWE-79",
"type": "CWE"
}
]
}
],
"references": [
{
"url": "https://github.com/reconurge/flowsint/security/advisories/GHSA-gj93-2vcq-729w",
"name": "https://github.com/reconurge/flowsint/security/advisories/GHSA-gj93-2vcq-729w",
"tags": [
"x_refsource_CONFIRM"
]
}
],
"metrics": [
{}
]
}
}
}