# CVE-2025-7949: Sanluan PublicCMS preview.html redirect

> Attackers can redirect users to malicious sites via the preview.html URL parameter in PublicCMS, requiring a patch to mitigate.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/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:** 22 Jul 2025
- **Updated:** 22 Jul 2025
- **Also known as:** GHSA-rmjh-hr29-qjfc

## What is CVE-2025-7949?

CVE-2025-7949 is a medium-severity vulnerability in Sanluan PublicCMS, published on 22 Jul 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

A vulnerability was found in Sanluan PublicCMS up to 5.202506.a. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file publiccms-parent/publiccms/src/main/resources/templates/admin/cmsDiy/preview.html. The manipulation of the argument url leads to open redirect. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The patch is named c1e79f124e3f4c458315d908ed7dee06f9f12a76/f1af17af004ca9345c6fe4d5936d87d008d26e75. It is recommended to apply a patch to fix this issue.

Weakness: CWE-601 (URL Redirection to Untrusted Site)

## Which versions are affected by CVE-2025-7949?

It affects 1 product.


Products: Publiccms Publiccms.

## How do I fix CVE-2025-7949?

No fix has been published for CVE-2025-7949 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-7949 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-7949 exists.

## Other vulnerabilities in Sanluan PublicCMS

- [CVE-2025-25361](https://insights.sbomify.com/CVE-2025-25361/): File upload in n/a (critical 9.8)
- [CVE-2023-46990](https://insights.sbomify.com/CVE-2023-46990/): Deserialization in n/a (critical 9.8)
- [CVE-2023-34852](https://insights.sbomify.com/CVE-2023-34852/): Missing authorization in n/a (critical 9.8)
- [CVE-2020-20914](https://insights.sbomify.com/CVE-2020-20914/): SQL injection in n/a (critical 9.8)
- [CVE-2020-20915](https://insights.sbomify.com/CVE-2020-20915/): SQL injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-7949 and fix it if it is affected.

What it is: CVE-2025-7949 is a medium-severity vulnerability in Sanluan PublicCMS, published on 22 Jul 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-2025-7949 exists.

Affected product: Sanluan PublicCMS. 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-2025-7949/ (Markdown: https://insights.sbomify.com/CVE-2025-7949/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-7949
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-7949
- OSV: https://osv.dev/vulnerability/CVE-2025-7949

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-7949/
Summaries are generated and may contain mistakes; the official description above is the record.