# CVE-2023-53927: PHPJabbers Simple CMS 5.0 Stored Cross-Site Scripting via Section Creation

> Authenticated attackers can inject malicious scripts via section names, leading to code execution when administrators view the sections.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA: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:** 17 Dec 2025
- **Updated:** 7 Apr 2026
- **Also known as:** GHSA-98qf-xpr5-r2xv

## What is CVE-2023-53927?

CVE-2023-53927 is a medium-severity cross-site scripting vulnerability in PHPJabbers Simple CMS, published on 17 Dec 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

PHPJabbers Simple CMS 5.0 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts through section name parameters. Attackers can create sections with embedded JavaScript payloads that will execute when administrators view the sections, potentially enabling client-side code execution.

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

## Which versions are affected by CVE-2023-53927?

It affects 1 product.


Products: Phpjabbers Simple Cms.

## How do I fix CVE-2023-53927?

No fix has been published for CVE-2023-53927 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-53927 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-53927 exists.

## Other vulnerabilities in PHPJabbers Simple CMS

- [CVE-2023-53926](https://insights.sbomify.com/CVE-2023-53926/): PHPJabbers Simple CMS 5.0 SQL Injection via Column Parameter (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-53927 and fix it if it is affected.

What it is: CVE-2023-53927 is a medium-severity cross-site scripting vulnerability in PHPJabbers Simple CMS, published on 17 Dec 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-2023-53927 exists.

Affected product: PHPJabbers Simple 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-2023-53927/ (Markdown: https://insights.sbomify.com/CVE-2023-53927/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-53927
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-53927
- OSV: https://osv.dev/vulnerability/CVE-2023-53927

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-53927/
Summaries are generated and may contain mistakes; the official description above is the record.