Is there a public PoC exploit available for CVE-2025-8739?

Yes, a public proof-of-concept exploit is available for CVE-2025-8739. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2025-8739?

Within 30 days: Identify affected systems running zhenfeng13 My-Blog and apply vendor patches as part of regular patch cycle. Verify anti-CSRF tokens are enforced.

CVE-2025-8739

Q: What is the CVSS score of CVE-2025-8739?

CVE-2025-8739 has a CVSS 4.0 base score of 2.1 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

LOW

Cross-Site Request Forgery (CSRF) (CWE-352)

2025-08-08 cna@vuldb.com

CSRF

2.1

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

2.1 LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

5.3 (MEDIUM) 2.1 (LOW)

Analysis Generated

Mar 28, 2026 - 19:05 vuln.today

PoC Detected

Sep 02, 2025 - 19:21 vuln.today

Public exploit code

CVE Published

Aug 08, 2025 - 21:15 nvd

MEDIUM 5.3

DescriptionCVE.org

A vulnerability was found in zhenfeng13 My-Blog up to 1.0.0 and classified as problematic. This issue affects some unknown processing of the file /admin/tags/save. The manipulation of the argument tagName leads to cross-site request forgery. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

AnalysisAI

A vulnerability was found in zhenfeng13 My-Blog up to 1.0.0 and classified as problematic. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Request Forgery (CSRF) (CWE-352), which allows attackers to trick authenticated users into performing unintended actions. A vulnerability was found in zhenfeng13 My-Blog up to 1.0.0 and classified as problematic. The manipulation of the argument tagName leads to cross-site request forgery. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Affected products include: Zhenfeng13 My-Blog. Version information: up to 1.0.0.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement anti-CSRF tokens, validate Origin/Referer headers, use SameSite cookie attribute.

CVE-2025-8739 vulnerability details – vuln.today

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