CRITICALpublic-safe

CVE-2026-42322

NVD: Piwigo is a full featured open source photo gallery application for the web. NVD: Prior to 16.4.0, admin/themes_standard_pages.php validates uploaded logo content by MIME type but reuses the attacker-controlled extension from std_pgs_logo when constructing the stored filename. NVD: An authenticated administrator can upload image content with a server-executable final extension, causing the file to be placed in the web-accessible logo directory and executed when requested if the web server handles that extension.

CVSS
9.1 Severity
CRITICAL EPSS
0.0053 (43) KEV
-

Source-published summary

Possible impact

Source describes code execution review · command execution risk. Possible impact: An attacker may be able to run code or commands on affected systems.

Affected context

Affected product or version requires source confirmation.

Remediation / advisory

Patch confirmed by source text; fixed version context: 16.4.0..

Why it matters

Source describes code execution review · command execution risk. Possible impact: An attacker may be able to run code or commands on affected systems.; CVSS 9.1 (CRITICAL); EPSS percentile 43; not listed in KEV; Patch confirmed by source text; fixed version context: 16.4.0; sources: NVD, OSV.

What to verify

Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.

Exposure hint

exposure unknown

Impact tags

code execution reviewcommand execution review

Urgency reasons

CVSS CRITICALvendor advisory presentrecent updateremediation reference present

Source-derived note

Summary derived from NVD / OSV description; unsafe procedural detail is not shown.

Redaction metadata

source summary used: True
fallback summary used: False
unsafe procedural detail present: false
raw source displayed: false
public summary redacted: true

Remediation handoff

Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.

Handoff JSON Handoff Markdown Safe Codex prompt

Safety note

This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.