Cross-Site Scripting (XSS) vulnerability in @cyntler/react-doc-viewer v1.17.1 allows…
Priority MEDIUM 60CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- 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
Cross-Site Scripting (XSS) vulnerability in @cyntler/react-doc-viewer v1.17.1 allows remote attackers to execute arbitrary JavaScript via a crafted .txt file. The TXTRenderer component fails to sanitize file content and explicitly casts raw data as a ReactNode
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00298 22nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 |
| — | @cyntler/react-doc-viewer (npm) | up to 1.17.1 | — | No fix listed | GHSA-fvhg-p4hf-79x3 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- @cyntler/react-doc-viewer (npm) Vendor— Affected up to 1.17.1 Fixed in — No fix listed GHSA-fvhg-p4hf-79x3
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-30691
- 2026-10-03 Alias added: GHSA-fvhg-p4hf-79x3
References
Sources
- CVE-2026-30691 · CVE Program
- CVE-2026-30691 · NVD
- FIRST EPSS
- GHSA-fvhg-p4hf-79x3 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences