CVE-2026-34968: Adminer before 5.4.3 Arbitrary File Deletion via SQLite Drop

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-25 · updated 2026-10-12
Weakness: CWE-22

Description

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.

Affected products

vrana adminer: before 5.4.3 — fixed in 5.4.3

How to fix

Upgrade to a fixed version: vrana adminer 5.4.3. Check the vendor advisory for mitigations.

References

https://github.com/vrana/adminer/security/advisories/GHSA-6pg3-chwq-wgqc
https://www.vulncheck.com/advisories/adminer-before-arbitrary-file-deletion-via-sqlite-drop
https://github.com/vrana/adminer/security/advisories/GHSA-6pg3-chwq-wgqc

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