CVE-2026-123857

Local XML External Entity Vulnerability via PHPMD Ruleset Autodetection in PhpStorm

Published Nov 6, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
In JetBrains PhpStorm before 2026.3 xXE was possible in untrusted projects via PHPMD ruleset autodetection

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Local XML External Entity Vulnerability via PHPMD Ruleset Autodetection in PhpStorm
Type Values Removed Values Added
First Time appeared Jetbrains
Jetbrains phpstorm
Vendors & Products Jetbrains
Jetbrains phpstorm
Type Values Removed Values Added
Description In JetBrains PhpStorm before 2026.3 xXE was possible in untrusted projects via PHPMD ruleset autodetection
Weaknesses CWE-611
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
JetBrains
Published
Updated
Nov 6, 2026, 4:45 PM
Reserved
Nov 6, 2026, 4:05 PM
Status
Awaiting Analysis
Published
Nov 6, 2026, 5:17 PM
Modified
Nov 6, 2026, 8:20 PM