CVE-2018-15877

HIGHNVD 8.88.8—Weaponized

8.8

The Plainview Activity Monitor plugin before 20180826 for WordPress is vulnerable to OS command injection via shell metacharacters in the ip parameter of a wp-admin/admin.php?page=plainview_activity_monitor&tab=activity_tools request.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 99.1%
KEV: Not listed

Published

August 26, 2018

Last Modified

November 21, 2024

References (8)

cve@mitrehttp://packetstormsecurity.com/files/155502/WordPress-Plainview-Activity-Monitor-20161228-Remote-Command-Execution.html
cve@mitrehttp://packetstormsecurity.com/files/163425/WordPress-Plainview-Activity-Monitor-20161228-Remote-Code-Execution.html
cve@mitrehttps://github.com/aas-n/CVE/tree/master/CVE-2018-15877
cve@mitrehttps://www.exploit-db.com/exploits/45274/
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/155502/WordPress-Plainview-Activity-Monitor-20161228-Remote-Command-Execution.html
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/163425/WordPress-Plainview-Activity-Monitor-20161228-Remote-Code-Execution.html
af854a3a-2127-422b-91ae-364da2661108https://github.com/aas-n/CVE/tree/master/CVE-2018-15877
af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/45274/

Weakness Classification(1)

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

CWE-78OS Command Injection

Data Freshness Timeline

(refreshed 7× in last 7d / 15× 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 13:49 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-28 03:46 UTCEG score recompute
2026-05-28 03:46 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-50110
First seen Jul 7, 2021
WordPress Plugin Plainview Activity Monitor 20161228 - Remote Code Execution (RCE) (Authenticated) (2)
Open source ↗
Exploit-DBEDB-45274✓ verified
First seen Aug 27, 2018
WordPress Plugin Plainview Activity Monitor 20161228 - (Authenticated) Command Injection
Open source ↗
Metasploitexploit/unix/webapp/wp_plainview_activity_monitor_rce✓ verified
First seen Aug 26, 2018
Wordpress Plainview Activity Monitor RCE
Open source ↗

Frequently asked(5)

What is CVE-2018-15877?

CVE-2018-15877 is a high vulnerability published on August 26, 2018. The Plainview Activity Monitor plugin before 20180826 for WordPress is vulnerable to OS command injection via shell metacharacters in the ip parameter of a wp-admin/admin.php?page=plainviewactivitymonitor&tab=activity_tools request.

When was CVE-2018-15877 disclosed?

CVE-2018-15877 was first published in the National Vulnerability Database on August 26, 2018, 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-2018-15877 actively exploited?

CVE-2018-15877 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-15877?

CVE-2018-15877 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2018-15877?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-15877, 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-2018-15877

📅 Published

🔄 Last Modified

🔗 References (8)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-15877?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (8)

Frequently asked(5)

Related CVEs(same CWE)