# CVE-2025-5509: quequnlong shiyi-blog upload path traversal

> Remote attackers can exploit a path traversal vulnerability in the file upload API to read or modify arbitrary files on the server.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Jun 2025
- **Updated:** 3 Jun 2025
- **Also known as:** GHSA-fpff-3qmf-f6fg

## What is CVE-2025-5509?

CVE-2025-5509 is a medium-severity path traversal vulnerability in quequnlong shiyi-blog, published on 3 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability classified as critical has been found in quequnlong shiyi-blog up to 1.2.1. This affects an unknown part of the file /api/file/upload. The manipulation of the argument file/source leads to path traversal. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2025-5509?

It affects 1 product.


Products: Quequnlong Shiyi-Blog.

## How do I fix CVE-2025-5509?

No fix has been published for CVE-2025-5509 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-5509 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-5509 exists.

## Other vulnerabilities in quequnlong shiyi-blog

- [CVE-2025-5511](https://insights.sbomify.com/CVE-2025-5511/): quequnlong shiyi-blog photos improper authorization (medium 6.9)
- [CVE-2025-5512](https://insights.sbomify.com/CVE-2025-5512/): quequnlong shiyi-blog Administrator Backend verifyPassword improper authentication (medium 6.9)
- [CVE-2025-12305](https://insights.sbomify.com/CVE-2025-12305/): quequnlong shiyi-blog Job SysJobController.java deserialization (medium 5.3)
- [CVE-2025-5510](https://insights.sbomify.com/CVE-2025-5510/): quequnlong shiyi-blog optimize server-side request forgery (medium 5.3)
- [CVE-2025-5513](https://insights.sbomify.com/CVE-2025-5513/): quequnlong shiyi-blog add cross site scripting (medium 5.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-5509 and fix it if it is affected.

What it is: CVE-2025-5509 is a medium-severity path traversal vulnerability in quequnlong shiyi-blog, published on 3 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-5509 exists.

Affected product: quequnlong shiyi-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-2025-5509/ (Markdown: https://insights.sbomify.com/CVE-2025-5509/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-5509
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-5509
- OSV: https://osv.dev/vulnerability/CVE-2025-5509

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-5509/
Summaries are generated and may contain mistakes; the official description above is the record.