# CVE-2025-47786: Emlog vulnerable to Stored Cross-site Scripting

> A stored XSS vulnerability in Emlog allows registered users to inject malicious JavaScript, potentially compromising other users' sessions.

- **Severity:** Low 1.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 15 May 2025
- **Updated:** 19 May 2025
- **Also known as:** GHSA-82qc-9vg7-2c6c

## What is CVE-2025-47786?

CVE-2025-47786 is a low-severity cross-site scripting vulnerability in Emlog Emlog, published on 15 May 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Emlog is an open source website building system. Version 2.5.13 has a stored cross-site scripting vulnerability that allows any registered user to construct malicious JavaScript, inducing all website users to click. In `/admin/comment.php`, the parameter `perpage_num` is not validated and is directly stored in the `admin_commend_perpage_num` field of the `emlog_options` table in the database. Moreover, the output is not filtered, resulting in the direct output of malicious code. As of time of publication, it is unclear if a patch exists.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2025-47786?

It affects 1 product.


Products: Emlog Emlog.

## How do I fix CVE-2025-47786?

No fix has been published for CVE-2025-47786 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-47786 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-47786 exists.

## Other vulnerabilities in Emlog Emlog

- [CVE-2025-29401](https://insights.sbomify.com/CVE-2025-29401/): File upload in n/a (critical 9.8)
- [CVE-2025-25783](https://insights.sbomify.com/CVE-2025-25783/): File upload in n/a (critical 9.8)
- [CVE-2023-44973](https://insights.sbomify.com/CVE-2023-44973/): File upload in n/a (critical 9.8)
- [CVE-2023-44974](https://insights.sbomify.com/CVE-2023-44974/): File upload in n/a (critical 9.8)
- [CVE-2023-43291](https://insights.sbomify.com/CVE-2023-43291/): Deserialization in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-47786 and fix it if it is affected.

What it is: CVE-2025-47786 is a low-severity cross-site scripting vulnerability in Emlog Emlog, published on 15 May 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-47786 exists.

Affected product: Emlog Emlog. 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-2025-47786/ (Markdown: https://insights.sbomify.com/CVE-2025-47786/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-47786
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-47786
- OSV: https://osv.dev/vulnerability/CVE-2025-47786

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-47786/
Summaries are generated and may contain mistakes; the official description above is the record.