# XSS in the \`of\` option of the \`.position()\` util in jquery-ui

Advisory record · `GHSA-gpqq-952q-5327`

- **Identifiers:** `GHSA-gpqq-952q-5327` · `BIT-drupal-2021-41184` · `CVE-2021-41184`
- **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:** 26 Oct 2021
- **Updated:** 8 Jul 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 26 Oct 2021, 14:55 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `jquery-ui` (npm): affected `<1.13.0`; fixed in `1.13.0`
- `org.webjars.npm:jquery-ui` (Maven): affected `<1.13.0`; fixed in `1.13.0`
- `jQuery.UI.Combined` (NuGet): affected `<1.13.0`; fixed in `1.13.0`
- `jquery-ui-rails` (RubyGems): affected `<7.0.0`; fixed in `7.0.0`

## 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:N/UI:R/S:U/C:N/I:H/A:N`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.41, the 98th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 26 Oct 2021, 00:00 UTC: [Confirmed by the CVE List](https://www.cve.org/CVERecord?id=CVE-2021-41184)
- 26 Oct 2021, 15:15 UTC: [Confirmed by NVD](https://nvd.nist.gov/vuln/detail/CVE-2021-41184)

## Sources

- [GitHub Advisory Database: GHSA-gpqq-952q-5327](https://github.com/advisories/GHSA-gpqq-952q-5327)
- [OSV: GHSA-gpqq-952q-5327](https://osv.dev/vulnerability/GHSA-gpqq-952q-5327)
- <https://github.com/jquery/jquery-ui/security/advisories/GHSA-gpqq-952q-5327>
- <https://nvd.nist.gov/vuln/detail/CVE-2021-41184>
- <https://github.com/jquery/jquery-ui/commit/effa323f1505f2ce7a324e4f429fa9032c72f280>
- <https://www.tenable.com/security/tns-2022-09>
- <https://www.oracle.com/security-alerts/cpujul2022.html>
- <https://www.oracle.com/security-alerts/cpuapr2022.html>
- <https://www.drupal.org/sa-core-2022-001>
- <https://security.netapp.com/advisory/ntap-20211118-0004>
- <https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SNXA7XRKGINWSUIPIZ6ZBCTV6N3KSHES>
- <https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SGSY236PYSFYIEBRGDERLA7OSY6D7XL4>
- <https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O74SXYY7RGXREQDQUDQD4BPJ4QQTD2XQ>
- <https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NXIUUBRVLA4E7G7MMIKCEN75YN7UFERW>

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-gpqq-952q-5327>, 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-gpqq-952q-5327/>. Everything for agents: <https://agentprime.io/llms.txt>.