CVE-2026-57828

Joomla Extension - phoca.cz - Authenticated file upload in Phoca Downloads component < 6.1.3 - The Joomla extension Phoca Downloads is vulnerable to an authenticated arbitrary file upload that allows registered users uploading executable files and leads to full RCE.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://mysites.guru/blog/phoca-download-authenticated-file-upload-rce/	Exploit Third Party Advisory
https://www.phoca.cz/phocadownload	Product

Configurations

Configuration 1 (hide)

cpe:2.3:a:phoca:download:*:*:*:*:*:joomla\!:*:*

History

No history.

Information

Published : 2026-07-11 10:16

Updated : 2026-08-19 15:17

NVD link : CVE-2026-57828

Mitre link : CVE-2026-57828

CVE.ORG link : CVE-2026-57828

JSON object : View

Products Affected

phoca

download

CWE

CWE-434

Unrestricted Upload of File with Dangerous Type

{"id": "CVE-2026-57828", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-57828", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-07-13T15:42:34.957835Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}], "cvssMetricV40": [{"type": "Secondary", "source": "security@joomla.org", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 9.0, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "security@joomla.org", "affectedData": [{"vendor": "phoca.cz", "product": "phoca.cz Phoca Download extension for Joomla", "versions": [{"status": "affected", "version": "1.0-6.1.2"}], "defaultStatus": "unaffected"}]}], "published": "2026-07-11T10:16:35.710", "references": [{"url": "https://mysites.guru/blog/phoca-download-authenticated-file-upload-rce/", "tags": ["Exploit", "Third Party Advisory"], "source": "security@joomla.org"}, {"url": "https://www.phoca.cz/phocadownload", "tags": ["Product"], "source": "security@joomla.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "security@joomla.org", "description": [{"lang": "en", "value": "CWE-434"}]}], "descriptions": [{"lang": "en", "value": "Joomla Extension - phoca.cz - Authenticated file upload in Phoca Downloads component < 6.1.3 - The Joomla extension Phoca Downloads is vulnerable to an authenticated arbitrary file upload that allows registered users uploading executable files and leads to full RCE."}], "lastModified": "2026-08-19T15:17:12.173", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:phoca:download:*:*:*:*:*:joomla\\!:*:*", "vulnerable": true, "matchCriteriaId": "A69B4D78-D922-48C1-9FAA-8D9549EE6DC2", "versionEndExcluding": "6.1.3"}], "operator": "OR"}]}], "sourceIdentifier": "security@joomla.org"}