What is CVE-2025-47946?

CVE-2025-47946 is a medium-severity vulnerability in Symfony Ux, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-05-19.

How severe is CVE-2025-47946?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2025-47946 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Symfony Ux

CVE-2025-47946

Symfony UX is an initiative and set of libraries to integrate JavaScript tools into applications. Prior to version 2.25.1, rendering `{{ attributes }}` or using any method that returns a `ComponentAttributes` instance (e.g. `only()`, `defa…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (11.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Symfony Ux — versions < 2.25.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2025-47946?: CVE-2025-47946 is a medium-severity vulnerability in Symfony Ux, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-05-19.
How severe is CVE-2025-47946?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2025-47946 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.