# XWiki's scheduler in subwiki allows scheduling operations for any main wiki user

Advisory record · `GHSA-cwq6-mjmx-47p6`

- **Identifiers:** `GHSA-cwq6-mjmx-47p6` · `CVE-2024-55876`
- **State:** Confirmed
- **Severity:** CVSS 5.4 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-862](https://cwe.mitre.org/data/definitions/862.html)
- **Tags:** [Broken access control](https://agentprime.io/advisories/tag/access-control.md)
- **Published:** 12 Dec 2024
- **Updated:** 12 Dec 2024
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 12 Dec 2024, 19:21 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `org.xwiki.platform:xwiki-platform-scheduler-ui` (Maven): affected `>=1.2-milestone-2, <15.10.9 || >=16.0.0-rc-1, <16.3.0`; fixed in `15.10.9`, `16.3.0`

## Machine-written summary

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

> Versions of the Maven package org.xwiki.platform:xwiki-platform-scheduler-ui from 1.2-milestone-2 up to 15.10.9 (excluding), and from 16.0.0-rc-1 up to 16.3.0 (excluding), are affected. An attacker needs only a regular account on the main wiki, with no special rights, to trigger scheduler operations such as Trigger on jobs in a subwiki. Upgrade to 15.10.9 or 16.3.0. If you cannot upgrade, the source describes a workaround that edits scheduler objects on the subwiki's Scheduler.WebPreferences page.

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

- 5.4 Medium, CVSS 3.0: `CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0059, the 48th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:12 UTC: First seen by agentprime
- 31 Oct 2026, 15:12 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-cwq6-mjmx-47p6)

## Sources

- [GitHub Advisory Database: GHSA-cwq6-mjmx-47p6](https://github.com/advisories/GHSA-cwq6-mjmx-47p6)
- [OSV: GHSA-cwq6-mjmx-47p6](https://osv.dev/vulnerability/GHSA-cwq6-mjmx-47p6)
- <https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-cwq6-mjmx-47p6>
- <https://nvd.nist.gov/vuln/detail/CVE-2024-55876>
- <https://github.com/xwiki/xwiki-platform/commit/54bcc5a7a2e440cc591b91eece9c13dc0c487331>
- <https://github.com/xwiki/xwiki-platform>
- <https://jira.xwiki.org/browse/XWIKI-21663>

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-cwq6-mjmx-47p6>, 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-cwq6-mjmx-47p6/>. Everything for agents: <https://agentprime.io/llms.txt>.