Medium severity6.1NVD Advisory· Published May 20, 2026· Updated May 21, 2026

CVE-2026-30691

Description

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

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
@cyntler/react-doc-viewernpm	<= 1.17.1	—

Affected products

Cyntler/React Doc Viewerllm-fuzzy
Range: =1.17.1

Patches

Vulnerability mechanics

References

github.com/advisories/GHSA-fvhg-p4hf-79x3ghsaADVISORY
nvd.nist.gov/vuln/detail/CVE-2026-30691ghsaADVISORY
github.com/cyntler/react-doc-viewer/issues/317nvdWEB

News mentions

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cvss	0.397
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000