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Vulnerabilities

Vulnerability · CVE-2025-39578

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in CyberChimps Responsive Blocks responsive-block-editor-addons allows Stored XSS

Published Apr 16, 2025 · catalog updated Apr 28, 2026 · Responsive Blocks

Check if you run it

No confirmed exploitation is on record for CVE-2025-39578. EPSS is 0.32%. Act only if a listed version of Responsive Blocks 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
0.32%
Remediation
Advisory link
Affected products
vendor cyberchimps Responsive Blocks 0 ≤2.0.2

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in CyberChimps Responsive Blocks responsive-block-editor-addons allows Stored XSS.This issue affects Responsive Blocks: from n/a through <= 2.0.2.

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 cyberchimps Responsive Blocks 0 ≤2.0.20 ≤2.0.2

How to fix CVE-2025-39578

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-2025-39578. EPSS is 0.32%. Act only if a listed version of Responsive Blocks is installed.

Which versions are affected?

Compare what you have installed with cyberchimps Responsive Blocks 0 ≤2.0.2 0 ≤2.0.2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.32%. 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. Apr 16, 2025 · EUVD

    Detected

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in CyberChimps Responsive Blocks responsive-block-editor-addons allows Stored XSS.This issue affects Responsive Blocks: from n/a through <= 2.0.2.

  2. Apr 28, 2026 · EUVD

    Updated

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in CyberChimps Responsive Blocks responsive-block-editor-addons allows Stored XSS.This issue affects Responsive Blocks: from n/a through <= 2.0.2.

Sources

  • CVE.orgVulnerability recordCVE-2025-39578

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-39578

    30-day exploitation probability 0.3%

    first.org
  • EUVDVulnerability recordEUVD-2025-11302

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in CyberChimps Responsive Blocks responsive-block-editor-addons allows Stored XSS.This issue affects Responsive Blocks: from n/a through <= 2.0.2.

    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.