CVE-2018-20323

HIGHNVD 8.88.8—Weaponized

8.8

www/soap/application/MCSoap/Logs.php in MailCleaner Community Edition 2018.08 allows remote attackers to execute arbitrary OS commands.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 98.9%
KEV: Not listed

Published

March 21, 2019

Last Modified

November 21, 2024

References (4)

cve@mitrehttp://packetstormsecurity.com/files/151056/Mailcleaner-Remote-Code-Execution.html
cve@mitrehttps://pentest.blog/advisory-mailcleaner-community-edition-remote-code-execution/
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/151056/Mailcleaner-Remote-Code-Execution.html
af854a3a-2127-422b-91ae-364da2661108https://pentest.blog/advisory-mailcleaner-community-edition-remote-code-execution/

Weakness Classification(1)

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

CWE-78OS Command Injection

Data Freshness Timeline

(refreshed 9× in last 7d / 13× 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.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 21:40 UTCEG score recompute
2026-05-27 21:40 UTCGHSA enrichment
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Metasploit module). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Metasploitexploit/linux/http/mailcleaner_exec✓ verified
First seen Dec 19, 2018
Mailcleaner Remote Code Execution
Open source ↗

Frequently asked(5)

What is CVE-2018-20323?

CVE-2018-20323 is a high vulnerability published on March 21, 2019. www/soap/application/MCSoap/Logs.php in MailCleaner Community Edition 2018.08 allows remote attackers to execute arbitrary OS commands.

When was CVE-2018-20323 disclosed?

CVE-2018-20323 was first published in the National Vulnerability Database on March 21, 2019, 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-2018-20323 actively exploited?

CVE-2018-20323 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-20323?

CVE-2018-20323 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2018-20323?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-20323, 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-2018-20323

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-20323?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)