Vrana Adminer up to 5.4.2 write.php TraceOn injection

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.95

Summaryinfo

A vulnerability labeled as critical has been found in Vrana Adminer up to 5.4.2. This affects an unknown part of the file write.php. Such manipulation of the argument TraceOn leads to injection. This vulnerability is referenced as CVE-2026-56705. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Vrana Adminer up to 5.4.2 and classified as critical. Affected by this issue is an unknown part of the file write.php. The manipulation of the argument TraceOn with an unknown input leads to a injection vulnerability. Using CWE to declare the problem leads to CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Adminer before 5.4.3 fails to sanitize the server field before constructing a PDO DSN string, allowing unauthenticated attackers to inject ODBC parameters via semicolons. Attackers can inject TraceFile and TraceOn parameters to write PHP code to the web root, achieving remote code execution when the trace file is accessed.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-56705 since 06/22/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1055.

By approaching the search of inurl:write.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 5.4.3 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Injection
CWE: CWE-74 / CWE-707 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Google Hack: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Adminer 5.4.3

Timelineinfo

06/22/2026 CVE reserved
08/25/2026 +64 days Advisory disclosed
08/25/2026 +0 days VulDB entry created
08/25/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-56705 (🔒)
GCVE (CVE): GCVE-0-2026-56705
GCVE (VulDB): GCVE-100-394880

Entryinfo

Created: 08/25/2026 03:56
Changes: 08/25/2026 03:56 (77)
Complete: 🔍
Cache ID: 216::103

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