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CVE-2025-24981
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CVE-2025-24981
MITRE ATT&CK
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Command and Control
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Defense Evasion
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Exfiltration
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Initial Access
Lateral Movement
Persistence
Privilege Escalation
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Description
MDC is a tool to take regular Markdown and write documents interacting deeply with a Vue component. In affected versions unsafe parsing logic of the URL from markdown can lead to arbitrary JavaScript code due to a bypass to the existing guards around the javascript: protocol scheme in the URL. The parsing logic implement in props.ts maintains a deny-list approach to filtering potential malicious payload. It does so by matching protocol schemes like javascript: and others. These security guards can be bypassed by an adversarial that provides JavaScript URLs with HTML entities encoded via hex string. Users who consume this library and perform markdown parsing from unvalidated sources could result in rendering vulnerable XSS anchor links. This vulnerability has been addressed in version 0.13.3 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
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AttackerKB requires a CVE ID in order to pull vulnerability data and references from the CVE list and the National Vulnerability Database. If available, please supply below:
