CVE-2021-4377Public exploitNetwork attack vector

Authenticated donor-data disclosure via unchecked CSV export

Published Jun 7, 2023 · Updated Apr 8, 2026

Information disclosure in Doneren met Mollie 2.8.4 and earlier allows remote authenticated users to export donor data as CSV. The dmm_export_donations() handler registered on admin_post_dmm_export writes the donations database to php://output without checking user capabilities. Any logged-in WordPress account can request the endpoint and retrieve donor names, contact details, payment metadata, and donation records.

CVSS severity6.5
Medium
EPSS probability1.03%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Doneren met Mollie 2.8.4 and earlier allows remote authenticated users to export donor data as CSV. The dmm_export_donations() handler registered on admin_post_dmm_export writes the donations database to php://output without checking user capabilities. Any logged-in WordPress account can request the endpoint and retrieve donor names, contact details, payment metadata, and donation records.

The record

CVE
CVE-2021-4377
Published
Jun 7, 2023
Updated
Apr 8, 2026
Vendor
Nick van Wobbie
Product
Doneren met Mollie
Classifications
CWE-200, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record 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=0 <=2.8.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Nick van Wobbie · Doneren met Mollieversion=0 <=2.8.4

Published CVSS scores

6.5WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
6.5NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1213Data from Information Repositories

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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