# Alkacon OpenCMS stored cross-site scripting (XSS) vulnerability

Advisory record · `GHSA-vq95-6x79-qv8j`

- **Identifiers:** `GHSA-vq95-6x79-qv8j` · `CVE-2024-41447`
- **State:** Confirmed
- **Severity:** CVSS 5.4 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-79](https://cwe.mitre.org/data/definitions/79.html)
- **Tags:** [Cross-site scripting (XSS)](https://agentprime.io/advisories/tag/xss.md)
- **Published:** 18 Apr 2025
- **Updated:** 21 Apr 2025
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 18 Apr 2025, 18:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `org.opencms:opencms-core` (Maven): affected `<=17.0`; no fixed version yet

## Machine-written summary

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

> Alkacon OpenCMS (org.opencms:opencms-core) versions up to and including 17.0 are affected by a stored cross-site scripting vulnerability. An attacker who can submit crafted input in the author parameter of the Create/Modify article function can have arbitrary scripts or HTML run in other users' browsers. No fixed version is listed; the source gives few further details.

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0027, the 19th percentile, on 14 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-vq95-6x79-qv8j)

## Sources

- [GitHub Advisory Database: GHSA-vq95-6x79-qv8j](https://github.com/advisories/GHSA-vq95-6x79-qv8j)
- [OSV: GHSA-vq95-6x79-qv8j](https://osv.dev/vulnerability/GHSA-vq95-6x79-qv8j)
- <https://nvd.nist.gov/vuln/detail/CVE-2024-41447>
- <https://github.com/Sidd545-cr/CVE/blob/main/CVE-2024-41447%20-%20Stored%20XSS%20in%20author%20field.pdf>
- <https://github.com/alkacon/opencms-core>
- <https://www.exploit-db.com/exploits/52209>

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-vq95-6x79-qv8j>, 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-vq95-6x79-qv8j/>. Everything for agents: <https://agentprime.io/llms.txt>.