vciy

CVE-2018-15877

INDEX BUILT · 2026-09-20

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The Plainview Activity Monitor plugin before 20180826 for WordPress is vulnerable to OS command injection via shell metacharacters in the ip…

CVE-2018-158773 of 4 sources documented this
51

rank 51 = 27 + 22 + 0 + 2 + 0

rank@v1 · this cycle

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.76990  ·  without this subject the record ranks 24

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 8.8, from NVD  ·  without this subject the record ranks 29

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 51

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 49

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 51

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$3.84Mover the next 30 days, if this record is yours
Movement+$2.11Mon 2022-02-04, the last material move, 4 years, 4 months before this reading
Basisassumeda published average, not your estate

$3.84M = $4.99M incident cost x 1 exposure x 0.7699 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.7699EPSSNOT IN KEVas of 2026-09-20
Severity8.8 HIGHreceipt
Harmtotal lossreceipt
Exploitationpublic proof-of-conceptreceipt
Defenseunaffected versions publishedreceipt
Movementscoring model changedreceipt
PLATEAU10Minimal movement since 2025-03-17, 455 days at 0.77, as of 2026-06-15. arc-rules@v1

Foresight · where to check next

CVE-2017-6884Soliton SystemsActiveMQ BrokerPHPCVE-2023-43208CVE-2021-2710215877

This record is one instance of CWE-78, improper neutralization of special elements used in an os command ('os command injection'). The index holds 6775 prior instances of this class, 121 KEV-listed. The nearest of its KEV-listed records are drawn beside this. taxonomy@v1

Full pattern panel

Prior records in this weakness class. Each is its own record, dated and receipted.
Color is a claim, not decoration:the hostile worldthe defenseno signalspoke length is how much of the record matches, not how bad it is

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachnetwork-reachable · low privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · NVD's vectorreceipt
Weakness classCWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')receipt
Published consequencesCWE-78: Confidentiality, Integrity, Availability, Non-Repudiation: Execute Unauthorized Code or Commands, DoS: Crash, Exit, or Restart, Read Files or Directories, Modify Files or Directories, Read…[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

First unaffected version, by branchactivity monitor project plainview activity monitor 20180826receipt
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Proof-of-concept published · 2 public repositories, 2019-02-08.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 2 public repositories2019-02-08receipt
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD8.8 HIGHreceipt
Exploit probability0.7699 · top 0.47% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned bymitrereceipt
Recorded changes48 · last 18 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesPlainview activity monitor project plainview activity monitorreceipt
Published rangesplainview activity monitor project plainview activity monitor < 20180826receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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What it is stated by the CNA

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. receipt

NVD's analysis a second authority

severity
8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
weakness
CWE-78
affected versions
plainview activity monitor project plainview activity monitor < 20180826

check it yourself github.com exploit-db.com packetstormsecurity.com packetstormsecurity.com receipt

Dated events

2022-02-04EPSS moved 0.26 to 0.682025-11-21EPSS moved 0.76 to 0.83

Movement the material steps

14 Apr 20210.21773
4 Feb 20220.68116 · crossed 0.50
7 Mar 20230.96986000000000006 · crossed 0.90 · scoring model v2023.03.01
17 Mar 20250.84642 · crossed 0.90 · scoring model v2025.03.14
15 Jun 20260.7699 · scoring model v2026.06.15
Show all 45 observations
14 Apr 20210.21773
8 Jul 20210.25842
4 Feb 20220.68116
7 Mar 20230.96986000000000006
8 Mar 20230.96986
9 Mar 20230.96939
11 Apr 20230.96821
23 Apr 20230.96844
8 May 20230.96821
16 Jun 20230.96890
18 Jul 20230.93606
5 Aug 20230.93737
20 Aug 20230.94317
7 Sep 20230.94702
24 Sep 20230.96630
13 Oct 20230.96498
31 Oct 20230.96834
18 Nov 20230.96802
5 Dec 20230.97008
26 Dec 20230.96986
17 Jan 20240.97010
7 Feb 20240.96901
26 Feb 20240.96826
14 Apr 20240.96654
5 Jul 20240.96728
5 Aug 20240.96880
17 Dec 20240.96405
17 Mar 20250.84642
19 Mar 20250.84402
20 Mar 20250.84642
23 Mar 20250.84402
24 Mar 20250.84642
27 Mar 20250.84402
28 Mar 20250.84109
29 Mar 20250.85491
30 Mar 20250.84109
11 Jun 20250.83967
27 Jul 20250.83679
7 Sep 20250.82713
18 Nov 20250.76113
21 Nov 20250.82713
3 Feb 20260.81132
9 Feb 20260.8082
12 Mar 20260.80319
15 Jun 20260.7699

45 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.7699Published2018-08-26Public PoC2019-02-08Index as of2026-06-15

The record had been public for 7 years, 9 months when this index was last written.

Published 2018-08-26 receipt · Public PoC 2019-02-08 receipt · Index as of 2026-06-15 derived

The pattern, elsewhere

This record is one instance of CWE-78, improper neutralization of special elements used in an os command ('os command injection'). The index holds 6775 prior instances of this class, 121 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2017-6884matches 8 of 8KEV listed · 2017receipt
CVE-2026-25108 · Soliton Systems K.K. FileZenmatches 8 of 8KEV listed · 2026receipt
CVE-2026-34197 · Apache ActiveMQ Brokermatches 8 of 8KEV listed · 2026receipt
CVE-2024-4577 · PHPmatches 7 of 8KEV listed · 2024receipt
CVE-2023-43208matches 7 of 8KEV listed · 2023receipt
CVE-2021-27102matches 7 of 8KEV listed · 2021receipt

"Matches n of m" counts the attributes the two records can both be compared on: the CVSS metrics they share a version of, any weakness class beyond this one, and the vendor. fit-rules@v1

6775 records in this class held. The six above are drawn from the ones CISA has listed as exploited, ranked by how much of the record matches this one. That is why every one of them is KEV-listed: the pool is, so the colour on those spokes says nothing the pool has not already said.

No curated product neighbourhood is held for this product, so the records above are the nearest this index can name. The neighbourhood table covers a small set of products and is extended by hand.

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