What’s Vulnerable › Vulnerabilities

CVE-2025-43954

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-20 · updated 2026-06-17
• Weakness: CWE-79

Description

QMarkdown (aka quasar-ui-qmarkdown) before 2.0.5 allows XSS via headers even when when no-html is set.

Affected products

• Quasar QMarkdown: before 2.0.5 — fixed in 2.0.5

How to fix

Upgrade to a fixed version: Quasar QMarkdown 2.0.5. Check the vendor advisory for mitigations.

References

• https://github.com/quasarframework/quasar-ui-qmarkdown/commit/b61dff84851c45369cf931db5bd93db177c657f6
• https://github.com/quasarframework/quasar-ui-qmarkdown/compare/v2.0.4...v2.0.5

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