Medium severity · published Apr 20, 2025
CVE-2025-43954
QMarkdown (aka quasar-ui-qmarkdown) before 2.0.5 allows XSS via headers even when when no-html is set
6.1
CVSS
0.2%
EPSS
No
On KEV
Description
QMarkdown (aka quasar-ui-qmarkdown) before 2.0.5 allows XSS via headers even when when no-html is set.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 12% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
QM
QMarkdown · Quasar
before 2.0.5 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-43954
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-43954
Patch
https://github.com/quasarframework/quasar-ui-qmarkdown/commit/b61dff84851c45369cf931db5bd93db177c657f6
Patch
https://github.com/quasarframework/quasar-ui-qmarkdown/compare/v2.0.4...v2.0.5