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.
- 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
- None listed
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
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.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-54165 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54165 exists.
Sources
Also known as GHSA-m95v-4xq6-grhg.