CVE-2026-56704 (GCVE-0-2026-56704)

Vulnerability from cvelistv5 – Published: 2026-08-25 01:30 – Updated: 2026-08-26 16:12
VLAI
Title
Adminer before 5.4.3 Cross-Site Scripting via MySQL Version String
Summary
Adminer before 5.4.3 inserts unsanitized database server version strings into script tags with valid CSP nonces without proper validation. Attackers controlling a rogue MySQL server can return crafted version strings that break out of the JavaScript context and execute arbitrary code, bypassing Content Security Policy protections.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
6.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 15:58 UTC
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6045 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
vrana adminer Affected: 0 , < 5.4.3 (semver)
Unaffected: 5.4.3 (semver)
    cpe:2.3:a:adminer:adminer:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-07-09 00:00
Credits
AmirMSafari
Show details on NVD website
To clipboard 

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