CVE-2021-29024Public exploitNetwork attack vector

Unauthenticated file disclosure via exposed upload directories

Published May 17, 2021 · Updated Jul 29, 2026

Information disclosure in InvoicePlane 1.5.11 allows remote attackers to download private upload files through unauthenticated HTTP requests. The uploads, archive, customer_files, import, temp, and temp/mpdf directories lack index documents, so directory indexing exposes their contents when .htaccess restrictions are ineffective. Exposure requires a server configuration that permits directory listing or ignores the supplied .htaccess controls, and the consequence is read-only disclosure of files stored in those directories.

CVSS severity7.5
High
EPSS probability1.63%
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 InvoicePlane 1.5.11 allows remote attackers to download private upload files through unauthenticated HTTP requests. The uploads, archive, customer_files, import, temp, and temp/mpdf directories lack index documents, so directory indexing exposes their contents when .htaccess restrictions are ineffective. Exposure requires a server configuration that permits directory listing or ignores the supplied .htaccess controls, and the consequence is read-only disclosure of files stored in those directories.

The record

CVE
CVE-2021-29024
Published
May 17, 2021
Updated
Jul 29, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-552, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 17, 2021CVE publishedPublication date reported by the CVE source.
  2. Jul 29, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-552Files or Directories Accessible to External Parties
T1190Exploit Public-Facing Application

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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