A stored cross-site scripting (XSS) vulnerability exists in the NotChatbot WebChat widget…
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
A stored cross-site scripting (XSS) vulnerability exists in the NotChatbot WebChat widget thru 1.4.4. User-supplied input is not properly sanitized before being stored and rendered in the chat conversation history. This allows an attacker to inject arbitrary JavaScript code which is executed when the chat history is reloaded. The issue is reproducible across multiple independent implementations of the widget, indicating that the vulnerability resides in the product itself rather than in a specific website configuration.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | @developer.notchatbot/webchat (npm) | up to 1.5.0 | — | No fix listed | GHSA-w3vx-52j6-9fjp |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- @developer.notchatbot/webchat (npm) Vendor— Affected up to 1.5.0 Fixed in — No fix listed GHSA-w3vx-52j6-9fjp
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-30048
- 2026-10-03 Alias added: GHSA-w3vx-52j6-9fjp
References
Sources
- CVE-2026-30048 · CVE Program
- CVE-2026-30048 · NVD
- FIRST EPSS
- GHSA-w3vx-52j6-9fjp · GitHub Advisory Database · CC BY 4.0
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