Vulnerability

CVE-2026-41940

Critical· 9.8KEVEXPLOITCVSS9.8EPSS91%

.rules3/5

WebPros cPanel & WHM and WP2 (WordPress Squared) Missing Authentication for Critical Function Vulnerability

WebPros cPanel & WHM (WebHost Manager) and WP2 (WordPress Squared) contain an authentication bypass vulnerability in the login flow that allows unauthenticated remote attackers to gain unauthorized access to the control panel.

Threat signal

100/100

Severe

Severity

critical

CVSS

9.8

EPSS

91%

Active

KEV

CISA KEV — actively exploited

Ransomware: Known41d overdue

AffectedWebPros — cPanel & WHM and WP2 (WordPress Squared)

Added to KEV

2026-04-30

Federal patch due (BOD 22-01)

2026-05-03

Required action (CISA verbatim)

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Vendor advisory + references

CISA description: “WebPros cPanel & WHM (WebHost Manager) and WP2 (WordPress Squared) contain an authentication bypass vulnerability in the login flow that allows unauthenticated remote attackers to gain unauthorized access to the control panel.”

CVSS

v3.1Open in FIRST calculator →

9.8/ 10CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNetworkExploitable remotely over the internet — no local access needed.
Attack ComplexityLowNo special conditions — exploit works reliably.
Privileges RequiredNoneUnauthenticated — no credentials needed.
User InteractionNoneFully automated — no victim action needed.
ScopeUnchangedImpact contained to the vulnerable component.
Confidentiality ImpactHighTotal disclosure of sensitive data.
Integrity ImpactHighTotal compromise of integrity — full data modification possible.
Availability ImpactHighTotal loss of availability — full DoS possible.

EPSS

Exploit prediction · 30-day horizonFIRST.org →

91.2%

probability of exploitation in next 30 days

p100

higher than 100% of all CVEs

3-day trend↑ 0pp

Statistically about to be weaponized — top-tier triage urgency.

Vendor VEX

No VEX statements published for CVE-2026-41940. Vendors publish VEX (Vulnerability Exploitability eXchange) to assert per-product whether a CVE is actually exploitable in their distribution.

SSVCAct

Active exploitation with total impact on essential/support systems

exploitation: active
automatable: yes
impact: total
mission: support

Lifecycle

2026-04-30Added to CISA KEVransomware: Known
2026-04-30Public exploit observedmetasploit, exploitdb
2026-04-30Published
2026-05-03Federal patch due (BOD 22-01)
2026-06-12Last modified1 source

Mentions in news & research

research:rapid7Metasploit Wrap Up 05/22/202621 d ago

No source-event history recorded yet. New revisions will appear here as ingestors re-fetch this CVE.