CVE Alert: CVE-2025-6493

Vulnerability Summary: CVE-2025-6493
A vulnerability was found in CodeMirror up to 5.17.0 and classified as problematic. Affected by this issue is some unknown functionality of the file mode/markdown/markdown.js of the component Markdown Mode. The manipulation leads to inefficient regular expression complexity. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. Not all code samples mentioned in the GitHub issue can be found. The repository mentions, that “CodeMirror 6 exists, and is […] much more actively maintained.”
Affected Endpoints:
No affected endpoints listed.
Published Date:
6/22/2025, 10:15:22 PM
⚠️ CVSS Score:
Exploit Status:
Not ExploitedReferences:
- https://github.com/codemirror/codemirror5/issues/7128
- https://vuldb.com/?ctiid.313610
- https://vuldb.com/?id.313610
- https://vuldb.com/?submit.598875
Recommended Action:
No proposed action available. Please refer to vendor documentation for updates.
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