CVE-2025-24981 – Vue Markdown Converter (MDC) Angular JavaScript XSS
The following table lists the changes that have been made to the CVE-2025-24981 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability’s severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Feb. 06, 2025
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L Added CWE CWE-79 Added Reference https://github.com/nuxt-modules/mdc/blob/main/src/runtime/parser/utils/props.ts#L16 Added Reference https://github.com/nuxt-modules/mdc/commit/99097738b5561639e9bf247c55d8103236618bf3 Added Reference https://github.com/nuxt-modules/mdc/security/advisories/GHSA-j82m-pc2v-2484