What is CVE-2026-15686?

CVE-2026-15686 is a high-severity vulnerability in Adminer, classified under CWE-253. CVSS score: 7.2/10. Published 2026-08-20.

How severe is CVE-2026-15686?

High severity. CVSS v3 base score is 7.2 out of 10.

Vulnerability in Adminer

CVE-2026-15686

Adminer multi_query Incorrect Check of Function Return Value Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Adminer. Authentication is required to exploit this vulnerability. The specific flaw exists within the multi_query method. The issue results from an incorrect check of a function return value. An attacker can leverage this vulnerability to execute code in the context of the web server. Was ZDI-CAN-28201.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Adminer — versions 5.4.2

Weakness classification (CWE)

CWE-253

References

zdi-disclosures@trendmicro.com (x_research-advisory)
zdi-disclosures@trendmicro.com (vendor-advisory)

Frequently asked questions

What is CVE-2026-15686?: CVE-2026-15686 is a high-severity vulnerability in Adminer, classified under CWE-253. CVSS score: 7.2/10. Published 2026-08-20.
How severe is CVE-2026-15686?: High severity. CVSS v3 base score is 7.2 out of 10.