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Vulnerabilities

Vulnerability · CVE-2025-15021

The Gotham Block Extra Light plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.5.0 due to insufficient in

Published Jan 14, 2026 · catalog updated Apr 8, 2026 · Gotham Block Extra Light

Last checked Oct 30, 2026. A connected source was read within the last 7 days.

Check this week

CVE-2025-15021 is not in CISA KEV. FIRST estimates a 22.00% chance of exploitation in the next 30 days. Check whether you run Gotham Block Extra Light.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium4.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
22.00%
Remediation
Vendor / distro source
Affected products
vendor gothamdev Gotham Block Extra Light 0 ≤1.5.0

The Gotham Block Extra Light plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.5.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

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 gothamdev Gotham Block Extra Light 0 ≤1.5.00 ≤1.5.0

How to fix CVE-2025-15021

  • No stored fix

    No vendor fix text is stored. Use the linked advisory before you change production.

  • Version check

    Seen in 0 ≤1.5.0

  • Official advisories

What to do

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

Should you patch?

CVE-2025-15021 is not in CISA KEV. FIRST estimates a 22.00% chance of exploitation in the next 30 days. Check whether you run Gotham Block Extra Light.

Which versions are affected?

Compare what you have installed with gothamdev Gotham Block Extra Light 0 ≤1.5.0 0 ≤1.5.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 22.00%. 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. Jan 14, 2026 · EUVD

    Detected

    The Gotham Block Extra Light plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.5.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesse

  2. Apr 8, 2026 · EUVD

    Updated

    The Gotham Block Extra Light plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.5.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesse

Sources

  • EUVDVulnerability recordEUVD-2026-2543

    The Gotham Block Extra Light plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.5.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with admin

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Apr 8, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • EUVDOct 30, 2026