Medium
Open WebUI: Stored XSS in Pending User Overlay via Incorrect DOMPurify Application Order
Type: advisorySources: OSV
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the AccountPending.svelte component renders the admin-configured "Pending User Overlay Content" using marked.parse() inside {@html} with an incorrect DOMPurify application order. An admin can inject arbitrary JavaScript into the Pending User Overlay Content that executes in the browser context of any pending user who views the overlay page. This vulnerability is fixed in 0.9.0.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-44568
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 20:27 UTC · Revision 1
Source evidence
Open WebUI: Stored XSS in Pending User Overlay via Incorrect DOMPurify Application Order
core-osv · Original sourcePublished 15 May 2026, 19:24 UTC
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the AccountPending.svelte component renders the admin-configured "Pending User Overlay Content" using marked.parse() inside {@html} with an incorrect DOMPurify application order. An admin can inject arbitrary JavaScript into the Pending User Overlay Content that executes in the browser context of any pending user who views the overlay page. This vulnerability is fixed in 0.9.0.
osv:CVE-2026-44568
Complete source record
{
"id": "f3b31fdc582152de9288a7d6a00ed9563f7fd736a137c6c4d7b9b7d82e201762",
"url": "https://osv.dev/vulnerability/CVE-2026-44568",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Open WebUI: Stored XSS in Pending User Overlay via Incorrect DOMPurify Application Order",
"summary": "Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the AccountPending.svelte component renders the admin-configured \"Pending User Overlay Content\" using marked.parse() inside {@html} with an incorrect DOMPurify application order. An admin can inject arbitrary JavaScript into the Pending User Overlay Content that executes in the browser context of any pending user who views the overlay page. This vulnerability is fixed in 0.9.0.",
"evidence": "osv:CVE-2026-44568",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2026-44568",
"aliases": [
"CVE-2026-44568",
"GHSA-fq3v-xjjx-95rc",
"PYSEC-2026-2724"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/open-webui/open-webui",
"type": "GIT",
"events": [
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},
{
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}
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"database_specific": {
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{
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"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"cpe": "cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*",
"range": [
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{
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],
"source": "CPE_RANGE"
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}
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44568.json"
}
}
],
"modified": "2026-10-28T02:30:51.498607298Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44568.json",
"https://github.com/open-webui/open-webui/security/advisories/GHSA-fq3v-xjjx-95rc",
"https://nvd.nist.gov/vuln/detail/CVE-2026-44568"
],
"provider_metadata": {
"cwe_ids": [
"CWE-79"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44568.json"
}
},
"related_cves": [
{
"value": "CVE-2026-44568",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 520307,
"published_at": "2026-05-15T19:24:46.49+00:00"
}