# CVE-2026-100695: Adminer before 6.0.2 XSS via CONNECTION_ID escalating to RCE

> A malicious database server can trigger XSS in Adminer, potentially leading to remote code execution if the database has file write privileges.

- **Severity:** Medium 5.3 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 26 Sep 2026
- **Updated:** 28 Sep 2026
- **Also known as:** DEBIAN-CVE-2026-100695, GHSA-3hv2-gxcf-jxpg, GHSA-7c5h-q78c-fpxx, UBUNTU-CVE-2026-100695

## What is CVE-2026-100695?

CVE-2026-100695 is a medium-severity cross-site scripting vulnerability in vrana adminer, published on 26 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official 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.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2026-100695?


## How do I fix CVE-2026-100695?

Upgrade to a fixed version.

## Is CVE-2026-100695 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100695 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-100695 and fix it if it is affected.

What it is: CVE-2026-100695 is a medium-severity cross-site scripting vulnerability in vrana adminer, published on 26 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100695 exists.

Affected product: vrana adminer. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-100695/ (Markdown: https://insights.sbomify.com/CVE-2026-100695/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-100695
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-100695
- OSV: https://osv.dev/vulnerability/CVE-2026-100695

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-100695/
Summaries are generated and may contain mistakes; the official description above is the record.