RCE in Vrana Adminer
CVE-2026-56703
Adminer before 5.4.3 contains a remote code execution vulnerability in SQLite query handling where VACUUM INTO is not blocked despite ATTACH restrictions. Authenticated attackers can execute VACUUM INTO to write PHP code to arbitrary file paths and execute commands on the server.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.012 (66.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.012 · change: +0.000
Affected products
Weakness classification (CWE)
References
- github.com/vrana/adminer/security/advisories/GHSA-gmx3-g29w-77wf (vendor-advisory)
- www.vulncheck.com/advisories/adminer-before-remote-code-execution-via-sqlite-va… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-56703?
- CVE-2026-56703 is a high-severity vulnerability in Vrana Adminer, classified under Code Injection. CVSS score: 7.2/10. Published 2026-08-25.
- How severe is CVE-2026-56703?
- High severity. CVSS v3 base score is 7.2 out of 10.