How severe is CVE-2026-4816?

CVE-2026-4816 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-4816 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-4816?

CVE-2026-4816 affects Schiocco Support Board. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-4816?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-4816 have an EU (EUVD) identifier?

Yes. CVE-2026-4816 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-15417.

When was CVE-2026-4816 published?

CVE-2026-4816 was published on 2026-03-25 and last updated on 2026-06-17.

CVE-2026-4816

CVE-2026-4816 is a medium-severity vulnerability in Schiocco Support Board with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v4: 4.8
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-15417
Weakness: CWE-79
Affected product: Schiocco Support Board
Published: 2026-03-25
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-4816?: 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.
How severe is CVE-2026-4816?: CVE-2026-4816 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-4816 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-4816?: CVE-2026-4816 affects Schiocco Support Board. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-4816?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-4816 have an EU (EUVD) identifier?: Yes. CVE-2026-4816 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-15417.
When was CVE-2026-4816 published?: CVE-2026-4816 was published on 2026-03-25 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:schiocco:support_board:*:*:*:*:*:wordpress:*:*

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