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Vulnerabilities

Vulnerability · CVE-2026-4816

A Reflected Cross Site Scripting (XSS) vulnerability has been found in Support Board v3.7.7.

Published Mar 25, 2026 · catalog updated Jun 17, 2026 · support board

Check if you run it

No confirmed exploitation is on record for CVE-2026-4816. EPSS is 0.23%. Act only if a listed version of support board is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium4.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.23%
Remediation
Advisory link
Affected products
cpe schiocco/support board

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe schiocco/support boardversion unspecified

How to fix CVE-2026-4816

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-4816. EPSS is 0.23%. Act only if a listed version of support board is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-79: Cross-site Scripting (XSS). EPSS 0.23%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 25, 2026 · NIST NVD

    Detected

    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 actio

  2. Jun 17, 2026 · NIST NVD

    Updated

    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 actio

Sources

  • CVE.orgVulnerability recordCVE-2026-4816

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-4816

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDVulnerability recordCVE-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/artic

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.