Adminer before 5.4.3 Arbitrary File Deletion via SQLite Drop
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Adminer before 5.4.3 contains an arbitrary file deletion vulnerability in SQLite mode where the database-list drop action fails to validate file extensions before deletion. An authenticated attacker can submit arbitrary relative file paths in the db[] parameter to delete any files writable by the PHP process.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA adminer (vrana) Fixed in 5.4.3
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
vrana adminer 5.4.3
6 records Highest priority Priority HIGH 4 HIGH, 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-40884 Adminer before 5.4.3 Remote Code Execution via MSSQL PDO DSN InjectionPriority HIGH 81
- TI-2026-40882 Adminer before 5.4.3 Remote Code Execution via SQLite VACUUM INTOPriority HIGH 72
- TI-2026-40881 Adminer before 5.4.3 Unrestricted File Upload via AdminerFileUploadPriority HIGH 66
Timeline
- 2026-10-02 Threatist record created from CVE-2026-34968
- 2026-10-03 Alias added: GHSA-vfp8-hfj6-qmr2
References
More Adminer vulnerabilities
- TI-2021-04411 SSRF in adminer KEVCVSS 3.1HIGH 7.2
- TI-2026-40884 Adminer before 5.4.3 Remote Code Execution via MSSQL PDO DSN Injection CVSS 4.0CRITICAL 9.3
- TI-2026-71163 Remote code execution in Adminer via UTF-8 BOM SQLite bypass CVSS 4.0HIGH 8.6
- TI-2026-40882 Adminer before 5.4.3 Remote Code Execution via SQLite VACUUM INTO CVSS 4.0HIGH 8.6
- TI-2026-64854 Adminer before 6.0.2 Privileged-Port SSRF via host_port Regex CVSS 4.0MEDIUM 6.9
- TI-2026-64852 Adminer before 6.0.2 Unauthenticated SSRF via Elasticsearch Driver CVSS 4.0MEDIUM 6.9
Sources
- CVE-2026-34968 · CVE Program
- CVE-2026-34968 · NVD
- FIRST EPSS
- GHSA-vfp8-hfj6-qmr2 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences