How severe is CVE-2018-15877?

CVE-2018-15877 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-15877 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 77% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-15877?

CVE-2018-15877 affects Plainview Activity Monitor Project Plainview Activity Monitor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-15877?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-15877 published?

CVE-2018-15877 was published on 2018-08-26 and last updated on 2026-06-17.

CVE-2018-15877

CVE-2018-15877 is a high-severity vulnerability in Plainview Activity Monitor Project Plainview Activity Monitor with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 77% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
EPSS exploit prediction: 77% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Plainview Activity Monitor Project Plainview Activity Monitor
Published: 2018-08-26
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2018-15877?: 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.
How severe is CVE-2018-15877?: CVE-2018-15877 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-15877 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 77% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-15877?: CVE-2018-15877 affects Plainview Activity Monitor Project Plainview Activity Monitor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-15877?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-15877 published?: CVE-2018-15877 was published on 2018-08-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:plainview_activity_monitor_project:plainview_activity_monitor:*:*:*:*:*:wordpress:*:*

Other CWE-78 (OS Command Injection) vulnerabilities

CVE-2026-56004 — Critical (CVSS 10.0): A shellcode injection in the mercurial handler of the obs tar_scm source service before version 0.12.4 could be used by…
CVE-2026-56415 — Critical (CVSS 10.0): Storage Concentrator (SC & SCVM) contains a command injection vulnerability within the debug.pl script that is…
CVE-2026-56413 — Critical (CVSS 10.0): Storage Concentrator (SC & SCVM) contains a command injection vulnerability in the ms_service.pl service, which listens…
CVE-2026-49869 — Critical (CVSS 10.0): Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, AuthenticationFilter in…
CVE-2026-49261 — Critical (CVSS 10.0): MariaDB server is a community developed fork of MySQL server. Versions 10.6.1 through 10.6.26, 10.11.1 through…
CVE-2026-10520 — Critical (CVSS 10.0): An OS Command Injection vulnerability in Ivanti Sentry before the R10.5.2, R10.6.2 and R10.7.1 versions allows a…

Browse all CWE-78 (OS Command Injection) vulnerabilities →