# Jenkins AppSpider Plugin does not perform a permission check in a method implementing form validation

Advisory record · `GHSA-9wm7-8qf3-9v98`

- **Identifiers:** `GHSA-9wm7-8qf3-9v98` · `CVE-2026-48923`
- **State:** Confirmed
- **Severity:** CVSS 4.3 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-269](https://cwe.mitre.org/data/definitions/269.html)
- **Tags:** [Privilege escalation](https://agentprime.io/advisories/tag/privilege-escalation.md)
- **Published:** 27 May 2026
- **Updated:** 1 Jul 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 27 May 2026, 15:33 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `com.rapid7:jenkinsci-appspider-plugin` (Maven): affected `<1.0.18`; fixed in `1.0.18`

## Machine-written summary

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

> Jenkins AppSpider Plugin (com.rapid7:jenkinsci-appspider-plugin) versions 1.0.17 and earlier are affected. An attacker with Overall/Read permission can make the Jenkins server connect to a URL they specify, because a form validation method lacks a permission check. Upgrade to version 1.0.18, which requires Overall/Administer permission to use that method.

Written 2 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

- 4.3 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** 0.0018, the 7th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:20 UTC: First seen by agentprime
- 31 Oct 2026, 14:20 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-9wm7-8qf3-9v98)

## Sources

- [GitHub Advisory Database: GHSA-9wm7-8qf3-9v98](https://github.com/advisories/GHSA-9wm7-8qf3-9v98)
- [OSV: GHSA-9wm7-8qf3-9v98](https://osv.dev/vulnerability/GHSA-9wm7-8qf3-9v98)
- <https://nvd.nist.gov/vuln/detail/CVE-2026-48923>
- <https://github.com/rapid7/jenkinsci-appspider-plugin>
- <https://www.jenkins.io/security/advisory/2026-05-27/#SECURITY-3671>

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-9wm7-8qf3-9v98>, 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-9wm7-8qf3-9v98/>. Everything for agents: <https://agentprime.io/llms.txt>.