CVE-2020-20919Public exploitNetwork attack vector

Authenticated code execution via executable theme upload

Published Jun 20, 2023 · Updated Dec 10, 2024

Unrestricted file upload in Pluck CMS 4.7.10-dev2 allows remote authenticated users to execute PHP through a crafted theme archive. The administrative theme installer extracts an uploaded ZIP into a web-served theme path and permits embedded theme.php code to execute. Administrative credentials are required; exploitation runs attacker-supplied code in the web server context and exposes data accessible to that process.

CVSS severity7.2
High
EPSS probability1.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in Pluck CMS 4.7.10-dev2 allows remote authenticated users to execute PHP through a crafted theme archive. The administrative theme installer extracts an uploaded ZIP into a web-served theme path and permits embedded theme.php code to execute. Administrative credentials are required; exploitation runs attacker-supplied code in the web server context and exposes data accessible to that process.

The record

CVE
CVE-2020-20919
Published
Jun 20, 2023
Updated
Dec 10, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-434, T1505.003
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jun 20, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 10, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.2NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.2CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1505.003Web Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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