CVE-2021-24227Network attack vector

Server file disclosure via traversal in image handler

Published Apr 12, 2021 · Updated Aug 3, 2024

Local file disclosure in Patreon WordPress before 1.7.0 allows remote attackers to read server files through a crafted image request. The servePatronOnlyImage method accepts the patron_only_image request value, constructs an upload URL, and passes unresolved attachment paths to readAndServeImage without confining them to an authorized file. No authentication or user interaction is required, and disclosure of wp-config.php exposes database credentials and cryptographic keys that can enable site compromise.

CVSS severity7.5
High
EPSS probability5.93%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local file disclosure in Patreon WordPress before 1.7.0 allows remote attackers to read server files through a crafted image request. The servePatronOnlyImage method accepts the patron_only_image request value, constructs an upload URL, and passes unresolved attachment paths to readAndServeImage without confining them to an authorized file. No authentication or user interaction is required, and disclosure of wp-config.php exposes database credentials and cryptographic keys that can enable site compromise.

The record

CVE
CVE-2021-24227
Published
Apr 12, 2021
Updated
Aug 3, 2024
Vendor
Patreon
Product
Patreon WordPress
Classifications
CWE-200, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 12, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.7.0 <1.7.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Patreon · Patreon WordPressversion=1.7.0 <1.7.0

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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