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GHSA-rcqx-6q8c-2c42

MediumCVSS 5.3 / 10
Published May 14, 2026·Last modified May 14, 2026
Affected Components(0)

No affected components available

Description

Svelte was vulnerable to DOM clobbering of its internal framework state on elements, potentially leading to XSS attacks.

You are vulnerable if all of the following is true:

  • you are using attribute spreading on a form element
  • you are using attribute spreading or allow a dynamic value for the name attribute on an input or button element within that form
  • both of these are simultaneously user-controllable
<form {...spread1}>
  <input {...spread2}>
</form>
Risk Scores
Base Score
5.3

The vulnerability can be exploited over the network without needing physical access. It is difficult for an attacker to exploit this vulnerability and may require special conditions. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability.

Threat Intelligence
1.3

Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.

EPSS
0.32%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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