# CVE-2025-9100: zhenfeng13 My-Blog Frontend Blog Article Comment comment authentication replay

> Attackers can bypass authentication in the blog comment handler via replay attacks, allowing unauthorized access to comment features.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Aug 2025
- **Updated:** 18 Aug 2025
- **Also known as:** GHSA-4qxr-c6vx-j7fm

## What is CVE-2025-9100?

CVE-2025-9100 is a medium-severity authentication bypass vulnerability in zhenfeng13 My-Blog, published on 18 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A security flaw has been discovered in zhenfeng13 My-Blog 1.0.0. This vulnerability affects unknown code of the file /blog/comment of the component Frontend Blog Article Comment Handler. The manipulation leads to authentication bypass by capture-replay. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-294 (Authentication Bypass by Capture-replay), CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2025-9100?

It affects 1 product.


Products: Zhenfeng13 My-Blog.

## How do I fix CVE-2025-9100?

No fix has been published for CVE-2025-9100 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-9100 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-9100 exists.

## Other vulnerabilities in zhenfeng13 My-Blog

- [CVE-2025-8739](https://insights.sbomify.com/CVE-2025-8739/): zhenfeng13 My-Blog save cross-site request forgery (medium 5.3)
- [CVE-2024-13144](https://insights.sbomify.com/CVE-2024-13144/): zhenfeng13 My-Blog BlogController.java uploadFileByEditomd unrestricted upload (medium 5.3)
- [CVE-2024-13145](https://insights.sbomify.com/CVE-2024-13145/): zhenfeng13 My-Blog uploadController. java upload unrestricted upload (medium 5.3)
- [CVE-2025-9101](https://insights.sbomify.com/CVE-2025-9101/): zhenfeng13 My-Blog Tag save cross site scripting (medium 5.1)
- [CVE-2025-8740](https://insights.sbomify.com/CVE-2025-8740/): zhenfeng13 My-Blog Category save cross site scripting (medium 4.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-9100 and fix it if it is affected.

What it is: CVE-2025-9100 is a medium-severity authentication bypass vulnerability in zhenfeng13 My-Blog, published on 18 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-9100 exists.

Affected product: zhenfeng13 My-Blog. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-9100/ (Markdown: https://insights.sbomify.com/CVE-2025-9100/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-9100
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-9100
- OSV: https://osv.dev/vulnerability/CVE-2025-9100

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-9100/
Summaries are generated and may contain mistakes; the official description above is the record.