CVE-2026-4816

Name: CVE-2026-4816
Creator: NVD / NIST
Published: 2026-03-25T14:16:40.3+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.14%

Last modified Jun 17, 2026

CVE-2026-4816 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. A Reflected Cross Site Scripting (XSS) vulnerability has been found in Support Board v3.7.7. This vulnerability allows an attacker to execute JavaScript code in the victim's browser by sending the victim a malicious URL using the 'search' parameter in '/supportboard/include/articles.php'. EPSS estimates a 0.14% chance of exploitation in the next 30 days.

Description

A Reflected Cross Site Scripting (XSS) vulnerability has been found in Support Board v3.7.7. This vulnerability allows an attacker to execute JavaScript code in the victim's browser by sending the victim a malicious URL using the 'search' parameter in '/supportboard/include/articles.php'. This vulnerability can be exploited to steal sensitive user data, such as session cookies, or to perform actions on behalf of the user.

Metrics

CVSS 3.1

5.4/10

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

CVSS 4.0

4.8/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/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

0.14%

3.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Schiocco	Support Board	< 3.7.8

References

https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-support-board-schioccoThird Party Advisory

Timeline

Published: Mar 25, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-4816?

How severe is CVE-2026-4816?

CVE-2026-4816 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.14% probability of exploitation in the next 30 days.

How do I fix CVE-2026-4816?

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-2026-4816?

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

Scan your code now

Source: NVD / NIST