# CVE-2026-54165: Stored DOM-XSS in public shared-folder image gallery (one-click, unauthenticated victim)

> Attacker can execute arbitrary JavaScript in victim browsers via stored XSS in shared folder image galleries, potentially leading to account takeover.

- **Severity:** Medium 6.4 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/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:** No
- **Published:** 11 Sep 2026
- **Updated:** 14 Sep 2026
- **Also known as:** GHSA-m95v-4xq6-grhg

## What is CVE-2026-54165?

CVE-2026-54165 is a medium-severity cross-site scripting vulnerability in smgdkngt dobase, published on 11 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

Dobase is an open-source, self-hosted workspace with installable tools. Versions prior to 2026.06.03 have a one-click stored DOM-based cross-site scripting (XSS) vulnerability in the public, unauthenticated shared-folder image gallery. A file's `name` is fully attacker-controlled and is never sanitized. It is round-tripped through an ERB-escaped `data-name` attribute, decoded back to its raw value by `el.dataset.name`, and then re-injected into `innerHTML` by the `public-gallery` Stimulus controller with no escaping. Any authenticated workspace member who can share a Files folder can store a payload; the victim is anyone with the public share link (no authentication required). The global Content-Security-Policy is sent report-only (not enforcing), so an inline `onerror` handler executes — this is an executing XSS, not a CSP-mitigated injection. Version 2026.06.03 fixes the issue.

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

## Which versions are affected by CVE-2026-54165?


## How do I fix CVE-2026-54165?

No fix has been published for CVE-2026-54165 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-54165 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54165 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-54165 and fix it if it is affected.

What it is: CVE-2026-54165 is a medium-severity cross-site scripting vulnerability in smgdkngt dobase, published on 11 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-2026-54165 exists.

Affected product: smgdkngt dobase. 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-2026-54165/ (Markdown: https://insights.sbomify.com/CVE-2026-54165/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-54165
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-54165
- OSV: https://osv.dev/vulnerability/CVE-2026-54165

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-54165/
Summaries are generated and may contain mistakes; the official description above is the record.