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GHSA-p5g4-v748-6fh8

tarteaucitron.js allows url scheme injection via unfiltered inputs

Source: GitHub Advisory Database (reviewed) Moderate CVE-2025-31476

Packages

EcosystemPackageAffectedFixed in
npm tarteaucitronjs < 1.20.1 1.20.1

Details

As written in the advisory (Markdown source, shown as plain text).

A vulnerability was identified in `tarteaucitron.js`, allowing a user with high privileges (access to the site's source code or a CMS plugin) to enter a URL containing an insecure scheme such as `javascript:alert()`. Before the fix, URL validation was insufficient, which could allow arbitrary JavaScript execution if a user clicked on a malicious link. ## Impact An attacker with high privileges could insert a link exploiting an insecure URL scheme, leading to: - Execution of arbitrary JavaScript code - Theft of sensitive data through phishing attacks - Modification of the user interface behavior ## Fix https://github.com/AmauriC/tarteaucitron.js/commit/2fa1e01023bce2e4b813200600bb1619d56ceb02 The issue was resolved by enforcing strict URL validation, ensuring that they start with `http://` or `https://` before being used.

References

External links from the advisory. They lead to third-party sites.