What is CVE-2024-50348?

CVE-2024-50348 is a medium-severity vulnerability in Instantcms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2024-10-29.

How severe is CVE-2024-50348?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Instantcms

CVE-2024-50348

InstantCMS is a free and open source content management system. In photo upload function in the photo album page there is no input validation taking place. Due to this attackers are able to inject the XSS (Cross Site Scripting) payload and execute. This vulnerability is fixed in 2.16.3.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2024-10-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (23.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Instantcms
Instantsoft Icms2 — versions < 2.16.3

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/instantsoft/icms2/security/advisories/GHSA-f6cf-jg84-fw29 (Exploit, Patch, Vendor Advisory)
github.com/instantsoft/icms2/commit/e02de2fa1850bb40c9b2050b9256c838a0ea7aa3 (Patch)

Frequently asked questions

What is CVE-2024-50348?: CVE-2024-50348 is a medium-severity vulnerability in Instantcms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2024-10-29.
How severe is CVE-2024-50348?: Medium severity. CVSS v3 base score is 5.4 out of 10.