CVE-2021-39458Public exploitNetwork attack vector

Database credential disclosure via backup checksum error

Published Sep 9, 2021 · Updated Aug 4, 2024

Information disclosure in Yakamara Media REDAXO CMS 5.12.1 allows remote authenticated users to read database credentials via backup import. A modified valid file-backup archive causes checksum validation to fail, and the resulting error page includes database credentials from environment variables. Administrative CMS access and a valid backup archive are required; the bounded consequence is disclosure of database connection secrets.

CVSS severity6.5
Medium
EPSS probability1.19%
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 Yakamara Media REDAXO CMS 5.12.1 allows remote authenticated users to read database credentials via backup import. A modified valid file-backup archive causes checksum validation to fail, and the resulting error page includes database credentials from environment variables. Administrative CMS access and a valid backup archive are required; the bounded consequence is disclosure of database connection secrets.

The record

CVE
CVE-2021-39458
Published
Sep 9, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-209, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 9, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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

6.5NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.0NIST National Vulnerability DatabaseAV:N/AC:L/Au:S/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-209Generation of Error Message Containing Sensitive Information
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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