# Jenkins Convert To Pipeline Plugin vulnerable to cross-site request forgery

Advisory record · `GHSA-48g9-h7g5-8pw2`

- **Identifiers:** `GHSA-48g9-h7g5-8pw2` · `CVE-2023-28676`
- **State:** Confirmed
- **Severity:** CVSS 8.8 High
- **Critical:** No
- **Weakness (CWE):** [CWE-352](https://cwe.mitre.org/data/definitions/352.html) · [CWE-652](https://cwe.mitre.org/data/definitions/652.html)
- **Tags:** [Cross-site request forgery (CSRF)](https://agentprime.io/advisories/tag/csrf.md) · [CWE-652](https://agentprime.io/advisories/tag/cwe-652.md)
- **Published:** 2 Apr 2023
- **Updated:** 25 Feb 2025
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 2 Apr 2023, 21:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `org.jenkins-ci.plugins:convert-to-pipeline` (Maven): affected `<=1.0`; no fixed version yet

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> Convert To Pipeline Plugin version 1.0 and earlier is vulnerable to cross-site request forgery because its endpoint that converts a Freestyle project to a Pipeline does not require POST requests. An attacker can use a victim's logged-in session to make Jenkins create a Pipeline based on a Freestyle project, and combined with CVE-2023-28677 this can lead to execution of unsandboxed Pipeline scripts. No fix is listed for this package.

Written 7 Nov 2026.

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 8.8 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** 0.0063, the 50th percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:11 UTC: First seen by agentprime
- 31 Oct 2026, 15:11 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-48g9-h7g5-8pw2)

## Sources

- [GitHub Advisory Database: GHSA-48g9-h7g5-8pw2](https://github.com/advisories/GHSA-48g9-h7g5-8pw2)
- [OSV: GHSA-48g9-h7g5-8pw2](https://osv.dev/vulnerability/GHSA-48g9-h7g5-8pw2)
- <https://nvd.nist.gov/vuln/detail/CVE-2023-28676>
- <https://github.com/jenkinsci/octoperf-plugin>
- <https://www.jenkins.io/security/advisory/2023-03-21/#SECURITY-2963>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-48g9-h7g5-8pw2>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-48g9-h7g5-8pw2/>. Everything for agents: <https://agentprime.io/llms.txt>.