FKIE_CVE-2026-59239
Vulnerability from fkie_nvd - Published: 2026-07-27 18:16 - Updated: 2026-07-27 19:17
Severity
Summary
Stored Cross-site Scripting (CWE-79) in the email module in Roskus Prospero Flow CRM before 5.4.4 allows a remote, authenticated low-privileged user to execute arbitrary JavaScript in another user's browser, including administrators, leading to session compromise and account takeover, via a payload stored in an email body that is persisted without sanitization and rendered unescaped with {!! $email->body !!} when the recipient opens the message.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"modules": [
"Email module"
],
"product": "Prospero Flow CRM",
"programFiles": [
"app/Services/EmailCreateService.php",
"resources/views/email/view.blade.php",
"app/Http/Controllers/Profile/ProfileSaveController.php"
],
"programRoutines": [
{
"name": "EmailCreateService"
}
],
"repo": "https://github.com/Roskus/prospero-flow-crm",
"vendor": "Roskus",
"versions": [
{
"lessThan": "5.4.4",
"status": "affected",
"version": "1.0.0",
"versionType": "semver"
}
]
}
],
"source": "4daa8cea-433a-44bd-9456-53b127fc289a"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Stored Cross-site Scripting (CWE-79) in the email module in Roskus Prospero Flow CRM before 5.4.4 allows a remote, authenticated low-privileged user to execute arbitrary JavaScript in another user\u0027s browser, including administrators, leading to session compromise and account takeover, via a payload stored in an email body that is persisted without sanitization and rendered unescaped with {!! $email-\u003ebody !!} when the recipient opens the message."
}
],
"id": "CVE-2026-59239",
"lastModified": "2026-07-27T19:17:17.970",
"metrics": {
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 8.6,
"baseSeverity": "HIGH",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "LOW",
"userInteraction": "PASSIVE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "4daa8cea-433a-44bd-9456-53b127fc289a",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-59239",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-27T18:30:57.587132Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-07-27T18:16:57.300",
"references": [
{
"source": "4daa8cea-433a-44bd-9456-53b127fc289a",
"url": "https://github.com/Roskus/prospero-flow-crm/commit/32efcd5c395ee55119fb9aea502a9d06e4c5adb8"
},
{
"source": "4daa8cea-433a-44bd-9456-53b127fc289a",
"url": "https://github.com/Roskus/prospero-flow-crm/releases"
},
{
"source": "4daa8cea-433a-44bd-9456-53b127fc289a",
"url": "https://secur0.com/en/cna/cve-list/cve-2026-59239-stored-xss-in-prospero-flow-crm-email-body-allows-administrator-account-takeover"
}
],
"sourceIdentifier": "4daa8cea-433a-44bd-9456-53b127fc289a",
"vulnStatus": "Received",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-79"
}
],
"source": "4daa8cea-433a-44bd-9456-53b127fc289a",
"type": "Secondary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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