CVE-2025-13749

CVSS 4.3 MediumEPSS 0.0%
  • CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
  • Published: 2026-01-09T06:16:00.917

The Clearfy Cache – WordPress optimization plugin, Minify HTML, CSS & JS, Defer plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.4.0. This is due to missing nonce validation on the “wbcr_upm_change_flag” function. This makes it possible for unauthenticated attackers to disable plugin/theme update notifications via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Related CVE by CWE

No related CWE found.

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Recently Exploited Similar Vulnerabilities

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How to fix CVE-2025-13749

CVE-2025-13749 is a medium severity vulnerability affecting the affected product.

Description: The Clearfy Cache – WordPress optimization plugin, Minify HTML, CSS & JS, Defer plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.4.0. This is due to missing nonce validation on the “wbcr_upm_change_flag” function. This makes it possible for unauthenticated attackers to disable plugin/theme update notifications via a […]

Affected Versions:
❌ Vulnerable: ≤ 2.4.0
✅ Safe: ≥ 2.4.1

Exploit Difficulty: MEDIUM
⏱️ Time to exploit: 1-4 hours
🛠️ Required skills: Intermediate security knowledge
💰 Public exploits: May be available

How to Fix:

1 Identify affected systems

- Check if you're running the affected product
- Verify version (vulnerable: ≤ 2.4.0)

2 Immediate actions

- Update to ≥ 2.4.1 or later
- If patching is not immediately possible: restrict network exposure, apply least-privilege access

3 Verification

- Test the fix in a staging environment first
- Review logs for signs of exploitation
- Monitor for IOCs (Indicators of Compromise)

4 Long-term prevention

- Enable automatic security updates
- Set up vulnerability monitoring
- Review and harden security configurations

Exploit Difficulty Assessment

MEDIUM
⏱️ Time to Exploit: 1-4 hours
🛠️ Skills Required: Intermediate security knowledge
💰 Public Exploits: May be available

Affected Versions

❌ Vulnerable: ≤ 2.4.0
✅ Safe: ≥ 2.4.1

Vulnerability Timeline

Jan 09, 2026
Vulnerability Published

CVE details first published to NVD database

Jan 09, 2026
Imported to Database

Added to this CVE tracking system

Detection Rules & IOCs

No specific detection rules generated for this vulnerability type.

No vendor/product data available.