XSS in Anssilaitila Shared Files – Frontend File Upload Form & Secure Sharing

CVE-2024-13504

The Shared Files – Frontend File Upload Form & Secure File Sharing plugin for WordPress is vulnerable to Stored Cross-Site Scripting via dfxp File uploads in all versions up to, and including, 1.7.42 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses the dfxp file. This issue affects only Apache-based environments, where dfxp files are handled by default.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (30.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2024-13504: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-13504?
CVE-2024-13504 is a high-severity vulnerability in Anssilaitila Shared Files – Frontend File Upload Form & Secure Sharing, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2025-01-31.
How severe is CVE-2024-13504?
High severity. CVSS v3 base score is 7.2 out of 10.
Is CVE-2024-13504 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.