# CVE-2024-0776: LinZhaoguan pb-cms Comment cross site scripting

> Remote attackers can execute arbitrary JavaScript in victim browsers via malicious input in the pb-cms comment handler.

- **Severity:** Low 3.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N`)
- **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 Jan 2024
- **Updated:** 17 Jun 2025
- **Also known as:** GHSA-wrfm-gwm7-rmfj

## What is CVE-2024-0776?

CVE-2024-0776 is a low-severity cross-site scripting vulnerability in LinZhaoguan pb-cms, published on 22 Jan 2024. 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, which was classified as problematic, has been found in LinZhaoguan pb-cms 2.0. Affected by this issue is some unknown functionality of the component Comment Handler. The manipulation with the input <div onmouseenter="alert("xss)"> leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-251678 is the identifier assigned to this vulnerability.

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

## Which versions are affected by CVE-2024-0776?

It affects 1 product.


Products: Pb-Cms Project Pb-Cms.

## How do I fix CVE-2024-0776?

No fix has been published for CVE-2024-0776 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-0776 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-0776 exists.

## Other vulnerabilities in LinZhaoguan pb-cms

- [CVE-2024-51229](https://insights.sbomify.com/CVE-2024-51229/): Cross-site scripting in n/a (high 8.8)
- [CVE-2025-1745](https://insights.sbomify.com/CVE-2025-1745/): LinZhaoguan pb-cms Logout cross-site request forgery (medium 5.3)
- [CVE-2025-2043](https://insights.sbomify.com/CVE-2025-2043/): LinZhaoguan pb-cms Add New Topic admin#themes deserialization (medium 5.1)
- [CVE-2024-10477](https://insights.sbomify.com/CVE-2024-10477/): LinZhaoguan pb-cms Permission Management Page admin#permissions cross site scripting (medium 5.1)
- [CVE-2024-10478](https://insights.sbomify.com/CVE-2024-10478/): LinZhaoguan pb-cms Edit Article edit cross site scripting (medium 5.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-0776 and fix it if it is affected.

What it is: CVE-2024-0776 is a low-severity cross-site scripting vulnerability in LinZhaoguan pb-cms, published on 22 Jan 2024. 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-2024-0776 exists.

Affected product: LinZhaoguan pb-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-2024-0776/ (Markdown: https://insights.sbomify.com/CVE-2024-0776/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-0776
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-0776
- OSV: https://osv.dev/vulnerability/CVE-2024-0776

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-0776/
Summaries are generated and may contain mistakes; the official description above is the record.