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Piwigo CVE-2026-84441

| EUVDEUVD-2026-69819 MEDIUM
Path Traversal (CWE-22)
2026-09-02 VulDB GHSA-h2h8-4755-pp56
PHP Path Traversal Piwigo N A
5.5
CVSS 4.0 · Vendor: VulDB
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Severity by source

Vendor (VulDB) PRIMARY
5.5 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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
vuln.today AI
6.5 MEDIUM

Network-reachable with no auth or interaction; limited read and potential write via derivative cache; no direct availability impact identified.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

3
CVSS changed
Sep 02, 2026 - 03:22 NVD
6.9 (MEDIUM) 5.5 (MEDIUM)
Analysis Generated
Sep 02, 2026 - 03:21 vuln.today
CVE Published
Sep 02, 2026 - 02:15 cve.org
MEDIUM 6.9

DescriptionCVE.org

A security vulnerability has been detected in Piwigo up to 16.3.0. Affected by this issue is some unknown functionality of the file i.php of the component Image Derivative Handler. The manipulation leads to path traversal. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used.

AnalysisAI

Path traversal in Piwigo's Image Derivative Handler (i.php) exposes arbitrary server-side files to remote unauthenticated attackers on installations up to version 16.3.0. The CVSS 4.0 vector confirms network-accessible, zero-authentication exploitation with low confidentiality and integrity impact, consistent with a traversal primitive that can both read and potentially write files in unanticipated filesystem locations. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Vulnerability AssessmentAI

Exploitation No special conditions are required beyond network access to the Piwigo i.php endpoint. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 6.9 (Medium) reflects limited per-impact dimensions (VC:L/VI:L/VA:L) with favorable attack conditions (AV:N/AC:L/AT:N/PR:N/UI:N), meaning any internet-exposed Piwigo instance is reachable by this attack with no authentication or user interaction. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation No vendor-released patch or fixed version is identified in the available data at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-84441 vulnerability details – vuln.today
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