CVE-2026-78079 - Vulnerability Details - OpenCVE

Joomla Extension - joomshaper.com - Open Redirect via Base64 Return Parameter in Helix Ultimate < 2.2.10 - Return redirect parameters accepted arbitrary Base64 strings without verifying whether the resolved target was an internal site URL via Uri::isInternal.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

No data.

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://www.joomshaper.com/joomla-templates/helixultimate

History

Mon, 31 Aug 2026 14:00:00 +0000

Type	Values Removed	Values Added
Description		Joomla Extension - joomshaper.com - Open Redirect via Base64 Return Parameter in Helix Ultimate < 2.2.10 - Return redirect parameters accepted arbitrary Base64 strings without verifying whether the resolved target was an internal site URL via Uri::isInternal.
Title		Joomla Extension - joomshaper.com - Privileged File Upload Bypass via Content Spoofing in Helix Ultimate < 2.2.10
Weaknesses		CWE-601
References		https://www.joomshaper.com/joomla-templates/helixultimate
Metrics		cvssV4_0 `{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N'}`

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: Joomla

Published: 2026-08-31T13:52:47.148Z

Updated: 2026-08-31T14:24:51.949Z

Reserved: 2026-08-22T14:23:37.801Z

Link: CVE-2026-78079

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-08-31T14:17:24.397

Modified: 2026-08-31T14:17:24.397

Link: CVE-2026-78079

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-601

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-78079", "assignerOrgId": "6ff30186-7fb7-4ad9-be33-533e7b05e586", "state": "PUBLISHED", "assignerShortName": "Joomla", "dateReserved": "2026-08-22T14:23:37.801Z", "datePublished": "2026-08-31T13:52:47.148Z", "dateUpdated": "2026-08-31T14:24:51.949Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Helix Ultimate extension for Joomla", "vendor": "joomshaper.com", "versions": [{"status": "affected", "version": "1.0-2.2.9"}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Joomla Extension - joomshaper.com - Open Redirect via Base64 Return Parameter in Helix Ultimate < 2.2.10 - Return redirect parameters accepted arbitrary Base64 strings without verifying whether the resolved target was an internal site URL via Uri::isInternal."}], "value": "Joomla Extension - joomshaper.com - Open Redirect via Base64 Return Parameter in Helix Ultimate < 2.2.10 - Return redirect parameters accepted arbitrary Base64 strings without verifying whether the resolved target was an internal site URL via Uri::isInternal."}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 5.3, "baseSeverity": "MEDIUM", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-601", "description": "CWE-601 URL Redirection to Untrusted Site ('Open Redirect')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "6ff30186-7fb7-4ad9-be33-533e7b05e586", "shortName": "Joomla", "dateUpdated": "2026-08-31T13:52:47.148Z"}, "references": [{"tags": ["product"], "url": "https://www.joomshaper.com/joomla-templates/helixultimate"}], "source": {"discovery": "UNKNOWN"}, "title": "Joomla Extension - joomshaper.com - Privileged File Upload Bypass via Content Spoofing in Helix Ultimate < 2.2.10", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-31T14:24:43.092643Z", "id": "CVE-2026-78079", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-31T14:24:51.949Z"}}]}}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Helix Ultimate extension for Joomla", "vendor": "joomshaper.com", "versions": [{"status": "affected", "version": "1.0-2.2.9"}]}], "source": "security@joomla.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Joomla Extension - joomshaper.com - Open Redirect via Base64 Return Parameter in Helix Ultimate < 2.2.10 - Return redirect parameters accepted arbitrary Base64 strings without verifying whether the resolved target was an internal site URL via Uri::isInternal."}], "id": "CVE-2026-78079", "lastModified": "2026-08-31T14:17:24.397", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.3, "baseSeverity": "MEDIUM", "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": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/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": "LOW", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security@joomla.org", "type": "Secondary"}]}, "published": "2026-08-31T14:17:24.397", "references": [{"source": "security@joomla.org", "url": "https://www.joomshaper.com/joomla-templates/helixultimate"}], "sourceIdentifier": "security@joomla.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-601"}], "source": "security@joomla.org", "type": "Primary"}]}