CVE-2025-54476

Name: CVE-2025-54476
Creator: NVD / NIST
Published: 2025-09-30T16:15:52.28+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.29%

Last modified Jun 17, 2026

CVE-2025-54476 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. Improper handling of input could lead to an XSS vector in the checkAttribute method of the input filter framework class.. EPSS estimates a 0.29% chance of exploitation in the next 30 days.

Description

Improper handling of input could lead to an XSS vector in the checkAttribute method of the input filter framework class.

Metrics

CVSS 4.0

4.8/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.29%

20.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

References

https://developer.joomla.org/security-centre/1010-20250901-core-inadequate-content-filtering-within-the-checkattribute-filter-code.html

Timeline

Published: Sep 30, 2025
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2025-54476?

Improper handling of input could lead to an XSS vector in the checkAttribute method of the input filter framework class.

How severe is CVE-2025-54476?

CVE-2025-54476 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.29% probability of exploitation in the next 30 days.

How do I fix CVE-2025-54476?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-54476?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST