Vulnerabilities

Vulnerability · CVE-2025-50035

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in CyrilG Fyrebox Quizzes fyrebox-shortcode allows Stored XSS.This issue affects

Published Jun 20, 2025 · catalog updated Apr 28, 2026 · CyrilG Fyrebox Quizzes

Last checked Oct 27, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-50035. EPSS is 0.25%. Act only if a listed version of CyrilG Fyrebox Quizzes is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.25%
Remediation
Advisory link
Affected products
vendor CyrilG Fyrebox Quizzes 0 ≤3.1

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in CyrilG Fyrebox Quizzes fyrebox-shortcode allows Stored XSS.This issue affects Fyrebox Quizzes: from n/a through <= 3.1.

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.

  • vendor CyrilG Fyrebox Quizzes 0 ≤3.10 ≤3.1

How to fix CVE-2025-50035

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-2025-50035. EPSS is 0.25%. Act only if a listed version of CyrilG Fyrebox Quizzes is installed.

Which versions are affected?

Compare what you have installed with CyrilG Fyrebox Quizzes 0 ≤3.1 0 ≤3.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.25%. 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. Jun 20, 2025 · EUVD

    Detected

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in CyrilG Fyrebox Quizzes fyrebox-shortcode allows Stored XSS.This issue affects Fyrebox Quizzes: from n/a through <= 3.1.

  2. Apr 28, 2026 · EUVD

    Updated

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in CyrilG Fyrebox Quizzes fyrebox-shortcode allows Stored XSS.This issue affects Fyrebox Quizzes: from n/a through <= 3.1.

Sources

  • CVE.orgVulnerability recordCVE-2025-50035

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-50035

    30-day exploitation probability 0.25%

    first.org
  • EUVDVulnerability recordEUVD-2025-28360

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in CyrilG Fyrebox Quizzes fyrebox-shortcode allows Stored XSS.This issue affects Fyrebox Quizzes: from n/a through <= 3.1.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 27, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 27, 2026
  • CVE.orgOct 21, 2026
  • EUVDOct 18, 2026