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Vulnerabilities

Vulnerability · CVE-2025-4963

The WP Extended plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 3.0.15 due to insufficient input saniti

Published May 28, 2025 · catalog updated Apr 8, 2026 · The Ultimate WordPress Toolkit – WP Extended

Check if you run it

No confirmed exploitation is on record for CVE-2025-4963. EPSS is 0.30%. Act only if a listed version of The Ultimate WordPress Toolkit – WP Extended is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.30%
Remediation
Vendor / distro source
Affected products
vendor wpextended The Ultimate WordPress Toolkit – WP Extended 0 ≤3.0.15

The WP Extended plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 3.0.15 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the SVG file.

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 wpextended The Ultimate WordPress Toolkit – WP Extended 0 ≤3.0.150 ≤3.0.15

How to fix CVE-2025-4963

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-2025-4963. EPSS is 0.30%. Act only if a listed version of The Ultimate WordPress Toolkit – WP Extended is installed.

Which versions are affected?

Compare what you have installed with wpextended The Ultimate WordPress Toolkit – WP Extended 0 ≤3.0.15 0 ≤3.0.15. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.30%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

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

Timeline

Detection, updates, and resolution for this record.

  1. May 28, 2025 · EUVD

    Detected

    The WP Extended plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 3.0.15 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the SVG file.

  2. Apr 8, 2026 · EUVD

    Updated

    The WP Extended plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 3.0.15 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the SVG file.

Sources

  • CVE.orgVulnerability recordCVE-2025-4963

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-4963

    30-day exploitation probability 0.3%

    first.org
  • EUVDVulnerability recordEUVD-2025-16321

    The WP Extended plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 3.0.15 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level ac

    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.