TI-2021-08458 Aliases CVE-2021-26834 GHSA-x3r7-v8h4-8v37

A cross-site scripting (XSS) vulnerability exists in Znote 0.5.2.

LOW 26CWE-79Published 2021-06-18 · Updated 2024-08-03

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 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

A cross-site scripting (XSS) vulnerability exists in Znote 0.5.2. An attacker can insert payloads, and the code execution will happen immediately on markdown view mode.

Why it matters now

EPSS 0.00695 53rd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:znote:znote:0.5.2:::::::*	0.5.2	Vulnerable	Znote

cpe:2.3:a:znote:znote:0.5.2:*:*:*:*:*:*:* Versions 0.5.2 Vulnerable ·Znote

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-26834
2026-10-03 Alias added: GHSA-x3r7-v8h4-8v37

References

Exploit 1

https://github.com/alagrede/znote-app/issues/5

Other 1

https://www.electronjs.org/apps/znote

TI-2022-04217 Cross-site Scripting (XSS) - Stored in alagrede/znote-app CVSS 3.1MEDIUM 5.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences