# CVE-2026-49954: Discuz! X5.0 Local File Inclusion via enable_disable.php Plugin Directory

> Authenticated administrators can achieve arbitrary code execution via path traversal in plugin directory attributes leading to local file inclusion.

- **Severity:** High 8.6 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Jun 2026
- **Updated:** 28 Jul 2026
- **Also known as:** GHSA-prqv-jwmw-qpp3

## What is CVE-2026-49954?

CVE-2026-49954 is a high-severity path traversal vulnerability in Discuz! X5.0, published on 15 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Discuz! X5.0 releases 20260320 through 20260610 contain a local file inclusion vulnerability that allows authenticated administrators to execute arbitrary code by importing a specially crafted plugin configuration containing path traversal sequences in the directory attribute. Attackers can trigger an exception during plugin installation to bypass sanitization routines, causing malicious paths to be stored unsanitized and subsequently passed to include(), which combined with file upload functionality escalates to arbitrary code execution in the context of the web server user.

Weakness: CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program)

## Which versions are affected by CVE-2026-49954?


## How do I fix CVE-2026-49954?

No fix has been published for CVE-2026-49954 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-49954 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-49954 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-49954 and fix it if it is affected.

What it is: CVE-2026-49954 is a high-severity path traversal vulnerability in Discuz! X5.0, published on 15 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-49954 exists.

Affected product: Discuz! X5.0. 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-2026-49954/ (Markdown: https://insights.sbomify.com/CVE-2026-49954/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-49954
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-49954
- OSV: https://osv.dev/vulnerability/CVE-2026-49954

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-49954/
Summaries are generated and may contain mistakes; the official description above is the record.