CVE-2026-55650 Outerbase Studio: Stored XSS in Text Widget Leads to Authentication Token Exposure
Attackers can inject malicious scripts into Text Widgets, leading to self-XSS and potential local token exposure in Outerbase Studio.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-55650?
CVE-2026-55650 is a medium-severity cross-site scripting vulnerability in outerbase studio, published on 15 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Outerbase Studio is a lightweight browser-based database GUI supporting PostgreSQL, MySQL, and SQLite. In version 0.10.2 and earlier, TextComponent in src/components/chart/index.tsx renders unsanitized Text Widget content through dangerouslySetInnerHTML, allowing injected markup with script-capable event handlers to execute when the widget is displayed. Outerbase Cloud and its backend services were discontinued in 2025, and the current architecture uses local browser dashboard storage, so the impact is limited to local self-XSS. Authentication token theft, account takeover, and backend database access are not applicable to the current architecture. No fixed release is available as of this review.
Weakness: CWE-79
Which versions are affected by CVE-2026-55650?
2 open source packages ship an affected version, including @outerbase/studio.
| Package | Affected | Fixed in |
|---|---|---|
@outerbase/studio npm | All versions to 0.10.2 | None |
@outerbase/studio npm | All versions to 0.10.2 | None |
How do I fix CVE-2026-55650?
No fix has been published for CVE-2026-55650 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-2026-55650 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55650 exists.
Sources
Also known as GHSA-wwf9-7jrc-rv4q.