Vulnerability · CVE-2025-39413
Missing Authorization vulnerability in David Gwyer Simple Sitemap – Create a Responsive HTML Sitemap simple-sitemap.This issue affects Simple Sitemap – Create a Responsive HTML Sit
Published Apr 30, 2025 · catalog updated Apr 28, 2026 · David Gwyer Simple Sitemap – Create a Responsive HTML Sitemap
Check if you run it
No confirmed exploitation is on record for CVE-2025-39413. EPSS is 0.39%. Act only if a listed version of David Gwyer Simple Sitemap – Create a Responsive HTML Sitemap is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Medium4.3
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.39%
- Remediation
- Advisory link
- Affected products
- vendor David Gwyer Simple Sitemap – Create a Responsive HTML Sitemap 0 ≤3.6.0
Missing Authorization vulnerability in David Gwyer Simple Sitemap – Create a Responsive HTML Sitemap simple-sitemap.This issue affects Simple Sitemap – Create a Responsive HTML Sitemap: from n/a through <= 3.6.0.
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 David Gwyer Simple Sitemap – Create a Responsive HTML Sitemap 0 ≤3.6.00 ≤3.6.0
How to fix CVE-2025-39413
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
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-2025-39413. EPSS is 0.39%. Act only if a listed version of David Gwyer Simple Sitemap – Create a Responsive HTML Sitemap is installed.
Which versions are affected?
Compare what you have installed with David Gwyer Simple Sitemap – Create a Responsive HTML Sitemap 0 ≤3.6.0 0 ≤3.6.0. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.39%. 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.
Apr 30, 2025 · EUVD
Detected
Missing Authorization vulnerability in David Gwyer Simple Sitemap – Create a Responsive HTML Sitemap simple-sitemap.This issue affects Simple Sitemap – Create a Responsive HTML Sitemap: from n/a through <= 3.6.0.
Apr 28, 2026 · EUVD
Updated
Missing Authorization vulnerability in David Gwyer Simple Sitemap – Create a Responsive HTML Sitemap simple-sitemap.This issue affects Simple Sitemap – Create a Responsive HTML Sitemap: from n/a through <= 3.6.0.
Sources
- CVE.orgVulnerability recordCVE-2025-39413
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-39413
30-day exploitation probability 0.4%
first.org - EUVDVulnerability recordEUVD-2025-12768
Missing Authorization vulnerability in David Gwyer Simple Sitemap – Create a Responsive HTML Sitemap simple-sitemap.This issue affects Simple Sitemap – Create a Responsive HTML Sitemap: from n/a through <= 3.6.0.
euvd.enisa.europa.eu
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.