CVE-2026-59239

Source
https://cve.org/CVERecord?id=CVE-2026-59239
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59239.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-59239
Published
2026-07-27T17:56:08Z
Modified
2026-09-03T03:30:13Z
Severity
  • 8.6 (High) CVSS_V4 - 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 CVSS Calculator
Summary
Stored XSS in Prospero Flow CRM email body allows administrator account takeover
Details

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.

Database specific
{
    "cna_assigner":  "Secur0",
    "cwe_ids":  [
        "CWE-79"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59239.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "introduced":  "1.0.0"
                },
                {
                    "fixed":  "5.4.4"
                }
            ],
            "source":  "AFFECTED_FIELD"
        },
        {
            "extracted_events":  [
                {
                    "introduced":  "1.0.0"
                },
                {
                    "fixed":  "5.4.4"
                }
            ],
            "source":  "CPE_FIELD"
        },
        {
            "extracted_events":  [
                {
                    "fixed":  "5.4.4"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}
References

Affected packages

Git / github.com/roskus/prospero-flow-crm

Affected ranges

Type
GIT
Repo
https://github.com/roskus/prospero-flow-crm
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Database specific
Show details
{
    "source":  "REFERENCES"
}

Affected versions

v1.*
v1.0.0
v2.*
v2.0.1
v4.*
v4.6.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59239.json"