CVE-2026-75510 (GCVE-0-2026-75510)
Vulnerability from cvelistv5
Published
2026-09-22 15:47
Modified
2026-09-22 15:59
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
Novu provides an API for sending notifications through multiple channels. Prior to 3.18.0, Novu's @novu/js In-App Inbox and the @novu/react Inbox component accept a notification call-to-action redirect.url from the v1 cta.data object and pass it through apps/api/src/app/inbox/utils/notification-mapper.ts and packages/js/src/ui/components/Notification/DefaultNotification.tsx to the navigate function in packages/js/src/ui/context/InboxContext.tsx without validating its URL scheme. An authenticated organization member or environment API-key holder can store a javascript: redirect with target _self in an in-app workflow. When a recipient using a Chromium-based browser clicks the notification, window.open executes the redirect in the current inbox-hosting origin, which can expose session material and permit authenticated actions in a customer application or the self-hosted Novu dashboard. This issue is fixed in version 3.18.0.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-75510",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-22T15:59:07.979961Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-22T15:59:27.761Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/novuhq/novu/security/advisories/GHSA-8gr3-5j6f-25gp"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "novu",
"vendor": "novuhq",
"versions": [
{
"status": "affected",
"version": "\u003c 3.18.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Novu provides an API for sending notifications through multiple channels. Prior to 3.18.0, Novu\u0027s @novu/js In-App Inbox and the @novu/react Inbox component accept a notification call-to-action redirect.url from the v1 cta.data object and pass it through apps/api/src/app/inbox/utils/notification-mapper.ts and packages/js/src/ui/components/Notification/DefaultNotification.tsx to the navigate function in packages/js/src/ui/context/InboxContext.tsx without validating its URL scheme. An authenticated organization member or environment API-key holder can store a javascript: redirect with target _self in an in-app workflow. When a recipient using a Chromium-based browser clicks the notification, window.open executes the redirect in the current inbox-hosting origin, which can expose session material and permit authenticated actions in a customer application or the self-hosted Novu dashboard. This issue is fixed in version 3.18.0."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 5.1,
"baseSeverity": "MEDIUM",
"privilegesRequired": "LOW",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "LOW",
"userInteraction": "PASSIVE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-22T15:47:19.922Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/novuhq/novu/security/advisories/GHSA-8gr3-5j6f-25gp",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/novuhq/novu/security/advisories/GHSA-8gr3-5j6f-25gp"
},
{
"name": "https://github.com/novuhq/novu/pull/11453",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/novuhq/novu/pull/11453"
},
{
"name": "https://github.com/novuhq/novu/commit/f105f3d41a4405a75f803634d49f15a967524d8a",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/novuhq/novu/commit/f105f3d41a4405a75f803634d49f15a967524d8a"
},
{
"name": "https://github.com/novuhq/novu/releases/tag/v3.18.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/novuhq/novu/releases/tag/v3.18.0"
}
],
"source": {
"advisory": "GHSA-8gr3-5j6f-25gp",
"discovery": "UNKNOWN"
},
"title": "Novu: Stored XSS in In-App Inbox via notification redirect.url javascript: scheme"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-75510",
"datePublished": "2026-09-22T15:47:19.922Z",
"dateReserved": "2026-08-17T20:49:21.598Z",
"dateUpdated": "2026-09-22T15:59:27.761Z",
"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-2026-75510\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-09-22T15:59:07.979961Z\"}}}], \"references\": [{\"url\": \"https://github.com/novuhq/novu/security/advisories/GHSA-8gr3-5j6f-25gp\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-09-22T15:59:24.621Z\"}}], \"cna\": {\"title\": \"Novu: Stored XSS in In-App Inbox via notification redirect.url javascript: scheme\", \"source\": {\"advisory\": \"GHSA-8gr3-5j6f-25gp\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 5.1, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N\", \"userInteraction\": \"PASSIVE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"LOW\", \"subIntegrityImpact\": \"LOW\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"LOW\", \"vulnConfidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"novuhq\", \"product\": \"novu\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 3.18.0\"}]}], \"references\": [{\"url\": \"https://github.com/novuhq/novu/security/advisories/GHSA-8gr3-5j6f-25gp\", \"name\": \"https://github.com/novuhq/novu/security/advisories/GHSA-8gr3-5j6f-25gp\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/novuhq/novu/pull/11453\", \"name\": \"https://github.com/novuhq/novu/pull/11453\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/novuhq/novu/commit/f105f3d41a4405a75f803634d49f15a967524d8a\", \"name\": \"https://github.com/novuhq/novu/commit/f105f3d41a4405a75f803634d49f15a967524d8a\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/novuhq/novu/releases/tag/v3.18.0\", \"name\": \"https://github.com/novuhq/novu/releases/tag/v3.18.0\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Novu provides an API for sending notifications through multiple channels. Prior to 3.18.0, Novu\u0027s @novu/js In-App Inbox and the @novu/react Inbox component accept a notification call-to-action redirect.url from the v1 cta.data object and pass it through apps/api/src/app/inbox/utils/notification-mapper.ts and packages/js/src/ui/components/Notification/DefaultNotification.tsx to the navigate function in packages/js/src/ui/context/InboxContext.tsx without validating its URL scheme. An authenticated organization member or environment API-key holder can store a javascript: redirect with target _self in an in-app workflow. When a recipient using a Chromium-based browser clicks the notification, window.open executes the redirect in the current inbox-hosting origin, which can expose session material and permit authenticated actions in a customer application or the self-hosted Novu dashboard. This issue is fixed in version 3.18.0.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-79\", \"description\": \"CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-09-22T15:47:19.922Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-75510\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-09-22T15:59:27.761Z\", \"dateReserved\": \"2026-08-17T20:49:21.598Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-09-22T15:47:19.922Z\", \"assignerShortName\": \"GitHub_M\"}",
"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…