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CVE-2021-24212 (GCVE-0-2021-24212)

Vulnerability from cvelistv5 – Published: 2021-04-05 18:27 – Updated: 2024-08-03 19:21
VLAI Shadowserver Previdian
Title
WooCommerce Help Scout < 2.9.1 - Unauthenticated Arbitrary File Upload leading to RCE
Summary
The WooCommerce Help Scout WordPress plugin before 2.9.1 (https://woocommerce.com/products/woocommerce-help-scout/) allows unauthenticated users to upload any files to the site which by default will end up in wp-content/uploads/hstmp.
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
References
Impacted products
Vendor Product Version CPE status
Unknown WooCommerce Help Scout Affected: 2.9.1 , < 2.9.1 (custom)
guessed Create a notification for this product.
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant

Vulnerability ID: CVE-2021-24212

Status: Confirmed

Status Updated: 2026-07-19 00:00 UTC

Exploited: Yes


Characteristics
Severity: 98.0

Timestamps
First Seen: 2025-11-18
Asserted: 2025-11-18
Last Seen: 2026-07-19

Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Wordpress / Wordpress WooCommerce Help Scout WordPress plugin | Class: cms | Severity: Critical (CVSS 9.8) | IoT: no | In CISA KEV: no | Honeypot connections on 2026-07-19: 1

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 Wordpress
30D Avg 5
90D Avg 4
Product Wordpress WooCommerce Help Scout WordPress plugin
Cisa Kev no
Connections 1
Observation Date 2026-07-19
Vulnerability Class CVSS
Vulnerability Score 9.8
Vulnerability Severity Critical

References

Created: 2026-06-30 09:23 UTC | Updated: 2026-07-21 01:02 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant

Vulnerability ID: CVE-2021-24212

Status: Confirmed

Status Updated: 2025-11-30 00:00 UTC

Exploited: Yes


Timestamps
First Seen: 2025-11-30
Asserted: 2025-11-30

Scope
Notes: KEVIntel entry: WooCommerce Help Scout < 2.9.1 - Unauthenticated Arbitrary File Upload leading to RCE | Affected: Unknown / WooCommerce Help Scout | CVSS: 9.8 (CRITICAL) | Used in malware: unknown | Not yet in CISA KEV: True

Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel


Details
Feed KEVIntel (kevintel.com)
Title WooCommerce Help Scout < 2.9.1 - Unauthenticated Arbitrary File Upload leading to RCE
Vendor Unknown
Product WooCommerce Help Scout
Added Date 2025-11-30T00:00:00.000Z
Cvss Score 9.8
Epss Score None
Cvss Severity CRITICAL
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True

References

Created: 2026-06-23 14:03 UTC | Updated: 2026-07-10 06:14 UTC
Show details on NVD website

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      "cve": "CVE-2021-24212",
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      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
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      "status": "final",
      "title": "WooCommerce Help Scout \u003c 2.9.1 - Unauthenticated Arbitrary File Upload leading to RCE",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-24212.json",
      "version": "3"
    }
  }
}



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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.

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