# Sector is a distribution targeted towards Drupal site builders and site owners who are looking for a fully configured Drupal project out of the box.

Advisory record · `DRUPAL-CONTRIB-2026-229`

- **Identifiers:** `DRUPAL-CONTRIB-2026-229` · `CVE-2026-107260`
- **State:** Confirmed
- **Severity:** CVSS 6.5 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:** 21 Oct 2026
- **Updated:** 21 Oct 2026
- **Reviewed by a person:** No

Published by OSV at 21 Oct 2026, 17:43 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `drupal/sector` (Packagist): affected `<10.3.3 || >=10.4.0, <10.4.2`; fixed in `10.3.3`, `10.4.2`

## Machine-written summary

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

> The Drupal distribution drupal/sector (Packagist) is affected in versions below 10.3.3 and from 10.4.0 up to but not including 10.4.2. A module specific to the distribution does not sufficiently sanitize media names, which can lead to cross-site scripting. An attacker needs a role that can create or edit media entities, and the source notes this requirement limits the risk. Upgrade to 10.3.3 or 10.4.2, which are the listed fixed versions.

Written 31 Oct 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

- 6.5 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L`, from ADP (CISA-ADP)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0016, the 5th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 30 Oct 2026, 03:09 UTC: [Confirmed by the CVE List](https://www.cve.org/CVERecord?id=CVE-2026-107260)
- 30 Oct 2026, 04:17 UTC: [Confirmed by NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-107260)
- 31 Oct 2026, 13:53 UTC: First seen by agentprime
- 31 Oct 2026, 13:53 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/DRUPAL-CONTRIB-2026-229)

## Sources

- [OSV: DRUPAL-CONTRIB-2026-229](https://osv.dev/vulnerability/DRUPAL-CONTRIB-2026-229)
- <https://www.drupal.org/sa-contrib-2026-229>

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/DRUPAL-CONTRIB-2026-229>, 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/DRUPAL-CONTRIB-2026-229/>. Everything for agents: <https://agentprime.io/llms.txt>.