CVE-2026-34967Public exploitNetwork attack vector

Authenticated arbitrary file write via schema traversal

Published Aug 25, 2026 · Updated Aug 25, 2026

Arbitrary file write in Adminer 5.3.0 through 5.4.2 allows remote authenticated users to write .sql files via the sql-log plugin. plugins/sql-log.php concatenates the unvalidated ns schema parameter into a log pathname, opens it in append mode, and writes submitted SQL verbatim. The plugin must be enabled, and a logged-in user can leave the database unset so schema validation is skipped, then write or expand files in any directory writable by the Adminer process.

CVSS severity5.4
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file write in Adminer 5.3.0 through 5.4.2 allows remote authenticated users to write .sql files via the sql-log plugin. plugins/sql-log.php concatenates the unvalidated ns schema parameter into a log pathname, opens it in append mode, and writes submitted SQL verbatim. The plugin must be enabled, and a logged-in user can leave the database unset so schema validation is skipped, then write or expand files in any directory writable by the Adminer process.

The record

CVE
CVE-2026-34967
Published
Aug 25, 2026
Updated
Aug 25, 2026
Vendor
Adminer
Product
Adminer
Classifications
CWE-73, CWE-22, T1105
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 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 versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Adminer · AdminerAffected versions are unavailable in this record.

Published CVSS scores

5.3VulnCheck CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
5.4VulnCheck CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
5.4AdminerCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

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-73External Control of File Name or Path
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1105Ingress Tool Transfer

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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