Is there a public PoC exploit available for CVE-2025-8740?

Yes, a public proof-of-concept exploit is available for CVE-2025-8740. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2025-8740?

During next maintenance window: Identify affected systems running zhenfeng13 My-Blog and apply vendor patches when convenient. Verify Content-Security-Policy and output encoding.

CVE-2025-8740

Q: What is the CVSS score of CVE-2025-8740?

CVE-2025-8740 has a CVSS 4.0 base score of 1.9 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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 Scripting (XSS) (CWE-79)

2025-08-08 cna@vuldb.com

XSS

1.9

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

1.9 LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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:H/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

High

User Interaction

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

4.8 (MEDIUM) 1.9 (LOW)

Analysis Generated

Mar 28, 2026 - 19:05 vuln.today

PoC Detected

Sep 02, 2025 - 19:22 vuln.today

Public exploit code

CVE Published

Aug 08, 2025 - 21:15 nvd

MEDIUM 4.8

DescriptionCVE.org

A vulnerability was found in zhenfeng13 My-Blog up to 1.0.0. It has been classified as problematic. Affected is an unknown function of the file /admin/categories/save of the component Category Handler. The manipulation of the argument categoryName leads to cross site scripting. It is possible to launch the attack 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. Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. A vulnerability was found in zhenfeng13 My-Blog up to 1.0.0. It has been classified as problematic. Affected is an unknown function of the file /admin/categories/save of the component Category Handler. The manipulation of the argument categoryName leads to cross site scripting. It is possible to launch the attack 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. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

CVE-2025-8740 vulnerability details – vuln.today

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