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CVE-2025-47947 cPanel CVE debrief

cPanel’s EasyApache 4 25.18 release notes identify CVE-2025-47947 as one of the issues addressed in a security update to ModSecurity 2. In the supplied corpus, no CVSS score, exploit details, or impact description is provided for the CVE itself, so the safest interpretation is to treat this as a vendor-confirmed package-level security fix for EasyApache 4 deployments.

Vendor
cPanel
Product
cPanel/WHM
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2025-05-21
Original CVE updated
2025-05-22
Advisory published
Unknown
Advisory updated
Unknown

Who should care

Administrators and security teams managing cPanel/WHM servers that use EasyApache 4, especially where ModSecurity 2 is installed or actively enforced.

Technical summary

The only supported detail in the supplied source corpus is that cPanel’s EasyApache 4 25.18 release includes security updates for ModSecurity 2 and libcurl, and that those updates address CVE-2025-47947 along with other CVEs. Because the corpus does not include the CVE record text or NVD details, no deeper technical characterization should be assumed beyond the need to apply the vendor’s security update.

Defensive priority

High for cPanel/WHM environments running EasyApache 4, because the vendor has already associated this CVE with a security package update and the affected component is part of the web server/security stack.

Recommended defensive actions

  • Upgrade to EasyApache 4 25.18 or the latest cPanel-recommended package set that includes the ModSecurity 2 security update.
  • Verify that affected cPanel/WHM servers received the updated EasyApache packages after maintenance windows or automated patching.
  • Review deployment inventory to confirm which hosts use EasyApache 4 and whether ModSecurity 2 is installed and active.
  • Monitor cPanel release notes and the official CVE/NVD records for any additional impact or remediation guidance.
  • If patching must be deferred, prioritize internet-facing production hosts first and document the exception until the update is applied.

Evidence notes

Evidence is limited to the vendor-official EasyApache 4 25.18 release note, which explicitly states that security updates for ModSecurity 2 and libcurl address CVE-2025-47947. The supplied corpus does not include a CVSS score, published/modified dates, or CVE/NVD technical detail, so this debrief avoids unsupported claims.

Official resources

cPanel’s EasyApache 4 25.18 release notes identify CVE-2025-47947 as addressed by a ModSecurity 2 security update. No published timestamps or CVSS data were supplied in the corpus.