CVE-2023-4879

Name: CVE-2023-4879
Creator: NVD / NIST
Published: 2023-09-10T18:15:08.003+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.34%

Last modified Jun 17, 2026

CVE-2023-4879 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. Cross-site Scripting (XSS) - Stored in GitHub repository instantsoft/icms2 prior to 2.16.1.-git.. EPSS estimates a 0.34% chance of exploitation in the next 30 days.

Description

Cross-site Scripting (XSS) - Stored in GitHub repository instantsoft/icms2 prior to 2.16.1.-git.

Metrics

CVSS 3.1

4.8/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.34%

26.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Instantcms	Instantcms	< 2.16.1

References

https://github.com/instantsoft/icms2/commit/d0aeeaf5979fbdbf80dc3a3227d6c58442ab7487Patch
https://huntr.dev/bounties/7df6b167-3c39-4563-9b8a-33613e25cf27Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/instantsoft/icms2/commit/d0aeeaf5979fbdbf80dc3a3227d6c58442ab7487Patch
https://huntr.dev/bounties/7df6b167-3c39-4563-9b8a-33613e25cf27Exploit, Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Sep 10, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-4879?

Cross-site Scripting (XSS) - Stored in GitHub repository instantsoft/icms2 prior to 2.16.1.-git.

How severe is CVE-2023-4879?

CVE-2023-4879 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.34% probability of exploitation in the next 30 days.

How do I fix CVE-2023-4879?

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-2023-4879?

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

Scan your code now

Source: NVD / NIST