# CVE-2026-59977: ConvertX: Cross-Site Request Forgery (CSRF) leading to Unauthorized Data Destruction

> An attacker can trick authenticated users into deleting their converted file history via a CSRF vulnerability in the delete endpoint.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 12 Oct 2026
- **Updated:** 13 Oct 2026
- **Also known as:** GHSA-63w7-h5q8-hcrj

## What is CVE-2026-59977?

CVE-2026-59977 is a high-severity vulnerability in C4illin ConvertX, published on 12 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

ConvertX is a self-hosted file conversion service. Prior to 0.18.0, the /delete/{id} endpoint uses HTTP GET for permanent deletion without CSRF protection. If an authenticated user visits attacker-controlled content that requests /delete/{id}, the browser sends the user session cookie and the request deletes the targeted job, resulting in unauthorized loss of converted-file history. This issue is fixed in version 0.18.0.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2026-59977?


## How do I fix CVE-2026-59977?

No fix has been published for CVE-2026-59977 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-59977 being exploited?

There is no known exploitation of CVE-2026-59977 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-59977 and fix it if it is affected.

What it is: CVE-2026-59977 is a high-severity vulnerability in C4illin ConvertX, published on 12 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-59977 in the wild and no public exploit code.

Affected product: C4illin ConvertX. 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-2026-59977/ (Markdown: https://insights.sbomify.com/CVE-2026-59977/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-59977
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-59977
- OSV: https://osv.dev/vulnerability/CVE-2026-59977

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-59977/
Summaries are generated and may contain mistakes; the official description above is the record.