Adminer before 6.0.2 XSS via CONNECTION_ID escalating to RCE (CVE-2026-100695) | HOL Guard CVE

Medium · CVSS 5.3CVE-2026-100695

Adminer before 6.0.2 XSS via CONNECTION_ID escalating to RCE

Answer in brief

CVE-2026-100695 records a Medium severity (CVSS 5.3) vulnerability in Adminer before 6.0.2 XSS via CONNECTION_ID escalating to RCE. The current sources do not mark it as known exploited. The current feed maps vrana/adminer (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 26, 2026Updated Sep 26, 2026Source checked Sep 26, 2026First seen by HOL Sep 26, 2026Material review Sep 26, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 5.3
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps vrana/adminer (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
vrana/adminergeneric	>=0 <6.0.2	6.0.2

Recommended response

Check inventory. Check lockfiles and deployed manifests for vrana/adminer.
Review the reported fix. Update vrana/adminer to 6.0.2 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 26, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 26, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 26, 2026

Sources and claim methodology

Upstream source description

Adminer before 6.0.2 contains a cross-site scripting vulnerability where the CONNECTION_ID() database result is interpolated into JavaScript without proper escaping, allowing a malicious database server to execute arbitrary JavaScript in the authenticated Adminer origin. In co-located deployments where the database has FILE privileges and can write to the webroot, attackers can use the XSS to submit authenticated SQL requests that write PHP files via INTO DUMPFILE, achieving remote code execution as the web server account.

Quoted source text, attributed separately from HOL analysis.