# CVE-2026-5344: Textpattern XML-RPC TXP_RPCServer.php mt_uploadImage path traversal

> Attackers can exploit a path traversal flaw in the XML-RPC handler to read or modify arbitrary files on the server.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/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:** Not needed
- **Fix available:** No
- **Published:** 2 Apr 2026
- **Updated:** 2 Apr 2026
- **Also known as:** GHSA-hwj5-vvrp-w79h

## What is CVE-2026-5344?

CVE-2026-5344 is a medium-severity path traversal vulnerability in Textpattern, published on 2 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A security vulnerability has been detected in Textpattern up to 4.9.1. Affected by this vulnerability is the function mt_uploadImage of the file rpc/TXP_RPCServer.php of the component XML-RPC Handler. The manipulation of the argument file.name leads to path traversal. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor confirmed the issue and will provide a fix in the upcoming release.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2026-5344?


## How do I fix CVE-2026-5344?

No fix has been published for CVE-2026-5344 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-5344 being exploited?

There is no known exploitation of CVE-2026-5344 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-5344 and fix it if it is affected.

What it is: CVE-2026-5344 is a medium-severity path traversal vulnerability in Textpattern, published on 2 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-5344 in the wild and no public exploit code.

Affected product: Textpattern. 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-2026-5344/ (Markdown: https://insights.sbomify.com/CVE-2026-5344/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-5344
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-5344
- OSV: https://osv.dev/vulnerability/CVE-2026-5344

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-5344/
Summaries are generated and may contain mistakes; the official description above is the record.