# CVE-2026-2934: YiFang CMS Extended Management D_friendLinkGroup.php update cross site scripting

> Attackers can inject malicious scripts via the Name argument in the Extended Management Module, potentially leading to session hijacking or code execution.

- **Severity:** Medium 4.8 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 22 Feb 2026
- **Updated:** 25 Feb 2026
- **Also known as:** GHSA-786c-jm2j-j6xw

## What is CVE-2026-2934?

CVE-2026-2934 is a medium-severity cross-site scripting vulnerability in YiFang CMS, published on 22 Feb 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

A security vulnerability has been detected in YiFang CMS up to 2.0.5. This impacts the function update of the file app/db/admin/D_friendLinkGroup.php of the component Extended Management Module. The manipulation of the argument Name leads to cross site scripting. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used.

Weakness: CWE-94 (Improper Control of Generation of Code), CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2026-2934?

It affects 1 product.


Products: Yifangcms Yifang.

## How do I fix CVE-2026-2934?

No fix has been published for CVE-2026-2934 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-2934 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2934 exists.

## Other vulnerabilities in YiFang CMS

- [CVE-2026-3741](https://insights.sbomify.com/CVE-2026-3741/): YiFang CMS D_friendLink.php update cross site scripting (medium 5.1)
- [CVE-2026-3742](https://insights.sbomify.com/CVE-2026-3742/): YiFang CMS D_singlePage.php update cross site scripting (medium 5.1)
- [CVE-2026-3743](https://insights.sbomify.com/CVE-2026-3743/): YiFang CMS D_singlePageGroup.php update cross site scripting (medium 5.1)
- [CVE-2026-2932](https://insights.sbomify.com/CVE-2026-2932/): YiFang CMS Extended Management D_adPosition.php update cross site scripting (medium 4.8)
- [CVE-2026-2933](https://insights.sbomify.com/CVE-2026-2933/): YiFang CMS Extended Management D_adManage.php update cross site scripting (medium 4.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-2934 and fix it if it is affected.

What it is: CVE-2026-2934 is a medium-severity cross-site scripting vulnerability in YiFang CMS, published on 22 Feb 2026. An attacker needs administrator access to exploit it, 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-2026-2934 exists.

Affected product: YiFang CMS. 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-2026-2934/ (Markdown: https://insights.sbomify.com/CVE-2026-2934/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-2934
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-2934
- OSV: https://osv.dev/vulnerability/CVE-2026-2934

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-2934/
Summaries are generated and may contain mistakes; the official description above is the record.