CVE-2021-30124

CRITICALNVD 9.89.8—

9.8

The unofficial vscode-phpmd (aka PHP Mess Detector) extension before 1.3.0 for Visual Studio Code allows remote attackers to execute arbitrary code via a crafted phpmd.command value in a workspace folder.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 86.2%
KEV: Not listed

Published

July 30, 2021

Last Modified

November 21, 2024

References (6)

cve@mitrehttps://github.com/sandhje/vscode-phpmd/commit/c462bf5c6f0160d0199855d5f8ed76be8d9beac0
cve@mitrehttps://marketplace.visualstudio.com/items?itemName=ecodes.vscode-phpmd
cve@mitrehttps://vuln.ryotak.me/advisories/25
af854a3a-2127-422b-91ae-364da2661108https://github.com/sandhje/vscode-phpmd/commit/c462bf5c6f0160d0199855d5f8ed76be8d9beac0
af854a3a-2127-422b-91ae-364da2661108https://marketplace.visualstudio.com/items?itemName=ecodes.vscode-phpmd
af854a3a-2127-422b-91ae-364da2661108https://vuln.ryotak.me/advisories/25

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-77Command Injection

Data Freshness Timeline

(refreshed 9× in last 7d / 19× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-04 13:10 UTCepss_batch
2026-06-04 13:10 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 12:56 UTCEG score recompute
2026-05-26 12:56 UTCGHSA enrichment
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 21:16 UTCOSV refresh

Frequently asked(5)

What is CVE-2021-30124?

CVE-2021-30124 is a critical vulnerability published on July 30, 2021. The unofficial vscode-phpmd (aka PHP Mess Detector) extension before 1.3.0 for Visual Studio Code allows remote attackers to execute arbitrary code via a crafted phpmd.command value in a workspace folder.

When was CVE-2021-30124 disclosed?

CVE-2021-30124 was first published in the National Vulnerability Database on July 30, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-30124 actively exploited?

CVE-2021-30124 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 86.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-30124?

CVE-2021-30124 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2021-30124?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-30124, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2021-30124

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-30124?

🔗 Related CVEs(same CWE)

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Last Modified

References (6)

Frequently asked(5)

Related CVEs(same CWE)