CVE-2020-27387 (GCVE-0-2020-27387)

Vulnerability from cvelistv5 – Published: 2020-11-05 01:18 – Updated: 2024-08-04 16:11
VLAI Shadowserver
Summary
An unrestricted file upload issue in HorizontCMS through 1.0.0-beta allows an authenticated remote attacker (with access to the FileManager) to upload and execute arbitrary PHP code by uploading a PHP payload, and then using the FileManager's rename function to provide the payload (which will receive a random name on the server) with the PHP extension, and finally executing the PHP file via an HTTP GET request to /storage/<php_file_name>. NOTE: the vendor has patched this while leaving the version number at 1.0.0-beta.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • n/a
Assigner
References
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 4f06a601-c3c7-46ae-b02f-8d317b7ffb5d

Vulnerability ID: CVE-2020-27387

Status: Confirmed

Status Updated: 2025-07-13 11:29 UTC

Exploited: Yes

Characteristics
Severity: 88.0
Timestamps
First Seen: 2025-07-13
Asserted: 2025-07-13
Last Seen: 2025-07-13
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: ttimot24 / HorizontCMS | Class: cms | Severity: High (CVSS 8.8) | IoT: no | In CISA KEV: no | Honeypot connections on 2025-07-13: 24
Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details
1D 1
Iot no
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class cms
7D Avg 0
Vendor ttimot24
30D Avg 0
90D Avg 0
Product HorizontCMS
Cisa Kev no
Connections 24
Observation Date 2025-07-13
Vulnerability Class CVSS
Vulnerability Score 8.8
Vulnerability Severity High
References
Created: 2026-07-01 07:18 UTC | Updated: 2026-07-01 12:45 UTC
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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