Arbitrary File Deletion in Adminer SQLite Mode
CVE-2026-34968

7.2HIGH

Key Information:

Vendor

Vrana

Status
Adminer
Vendor
CVE Published:
25 August 2026

What is CVE-2026-34968?

Adminer versions prior to 5.4.3 are susceptible to an arbitrary file deletion vulnerability when operating in SQLite mode. This issue arises from insufficient validation of file extensions during the database-list drop action. An authenticated attacker can exploit this vulnerability by injecting arbitrary relative file paths into the db[] parameter. This can potentially allow the attacker to delete any files that are writable by the PHP process, jeopardizing the integrity of the system.

Affected Version(s)

adminer 0 < 5.4.3

adminer 5.4.3

References

https://github.com/vrana/adminer/security/advisories/GHSA...
vendor-advisory
https://www.vulncheck.com/advisories/adminer-before-arbit...
third-party-advisory

CVSS V4

Score:
7.2
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

slpoiuewalspoid-dotcom
.