QMarkdown (aka quasar-ui-qmarkdown) before 2.0.5 allows XSS via headers even when when no-html is set.
Priority LOW 27CWE-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
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
QMarkdown (aka quasar-ui-qmarkdown) before 2.0.5 allows XSS via headers even when when no-html is set.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00214 11th percentileScored 2026-11-07
Fix Fixed QMarkdown (Quasar): 2.0.5@quasar/quasar-ui-qmarkdown (npm): 2.0.5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- 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 |
|---|---|---|---|---|---|
| @quasar | QMarkdown | before 2.0.5 | 2.0.5 | Patch available | CNA |
| — | @quasar/quasar-ui-qmarkdown (npm) | before 2.0.5 | 2.0.5 | Patch available | GHSA-wm65-ph3w-587c |
- QMarkdown Vendor@quasar Affected before 2.0.5 Fixed in 2.0.5 Patch available CNA
- @quasar/quasar-ui-qmarkdown (npm) Vendor— Affected before 2.0.5 Fixed in 2.0.5 Patch available GHSA-wm65-ph3w-587c
Remediation
- Fix · CNA QMarkdown (Quasar) Fixed in 2.0.5
- Fix · GHSA-wm65-ph3w-587c @quasar/quasar-ui-qmarkdown (npm) Fixed in 2.0.5 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-43954
- 2026-10-03 Alias added: GHSA-wm65-ph3w-587c
References
Patch 2
Sources
- CVE-2025-43954 · CVE Program
- CVE-2025-43954 · NVD
- FIRST EPSS
- GHSA-wm65-ph3w-587c · 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