CVE-2025-58047: Volto CMS DoS Vulnerability — CyberDudeBivash Global Breakdown

 

Author: CyberDudeBivash

Powered by: CyberDudeBivash.com | CyberBivash.blogspot.com

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Executive Summary

CVE-2025-58047 is a high-severity Denial-of-Service (DoS) vulnerability discovered in Volto, the React-based frontend of the Plone CMS. An unauthenticated attacker can crash the Node.js server simply by visiting a crafted URL, causing website downtime and service disruption.

• CVSS 3.1 Score: 7.5 (High)

• Impact: Availability (full server crash)

• Attack Vector: Remote, unauthenticated, low complexity

• Exploitation Ease: Very high — a single URL can crash the system

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Technical Analysis

Vulnerable Component

• Product: Volto (Plone CMS frontend)

• Affected Versions:

  • <16.34.0

  • <17.22.1

  • <18.24.0

  • <19.0.0-alpha.4

Root Cause

• Classified under CWE-755: Improper Handling of Exceptional Conditions.

• Crafted URL → unhandled exception → Node.js process crash.

• Since Node.js runs the frontend, this results in total service unavailability.

CVSS Breakdown

• AV:N (Network-based, remote exploit)

• AC:L (Low complexity)

• PR:N (No privileges required)

• UI:N (No user interaction needed)

• A:H (High impact to availability)

• C:N, I:N (No confidentiality or integrity loss)

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Exploitation Scenarios

1. Website Downtime Attack

   • Attacker repeatedly hits crafted URL → Node.js server crashes → website offline.

2. Ransom-driven DoS

   • Attacker demands ransom to stop crashing services.

3. Disruption in Government/Education Sites

   • Plone and Volto are popular in government, universities, and research portals.

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Business & Industry Impact

• Government & Education: Major portals disrupted → trust erosion.

• Enterprise: Business continuity broken during downtime.

• Developers: Deployment pipelines break if Volto frontend is targeted.

Even though data confidentiality is unaffected, service unavailability is often just as damaging to reputation and SLA compliance.

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Mitigation Strategy

1. Apply Patches

Upgrade immediately to patched versions:

• 16.34.0

• 17.22.1

• 18.24.0

• 19.0.0-alpha.4

2. Auto-Restart Policy

• Use PM2, systemd, or Docker restart policies to automatically restart Node.js after crashes.

3. Harden Deployment

• Deploy Volto behind reverse proxies (NGINX, HAProxy).

• Filter crafted URL patterns at WAF level.

4. Monitoring

• Enable crash monitoring & alerting.

• Log and analyze abnormal HTTP requests.

5. Defensive Coding

• Strengthen error handling in Volto for unexpected input.

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CyberDudeBivash Ecosystem Defense

• Threat Analyser App — Detects real-time Node.js anomalies and service crashes.

• Daily Global CVE Breakdown — Proactive alerting on new CVEs like CVE-2025-58047.

• ThreatWire Newsletter — Executive-grade briefings for CISOs.

• Affiliate Partner Tools:

  • CrowdStrike Falcon (affiliate) → detects anomalous exploitation behaviors.

  • Bitdefender Total Security (affiliate) → runtime protection against exploitation payloads.

  • Cloudflare WAF (affiliate) → blocks malicious crafted URLs.

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Conclusion

CVE-2025-58047 highlights how availability attacks—though less flashy than data breaches—can cause significant business disruption.

With a simple URL, attackers can force downtime across critical government, education, and enterprise deployments of Volto.

To defend:

• Patch now to fixed versions.

• Implement auto-restart policies.

• Deploy WAF filtering and monitoring.

CyberDudeBivash stands as your global partner for continuous threat intelligence, technical defenses, and proactive resilience strategies.

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