CVE-2026-3375

🗓️ 27 May 2026 07:45:55Reported by WordfenceType

cve🔗 web.nvd.nist.gov👁 18 Views🌐 WEB

LiteSpeed Cache up seven seven allows unauthenticated stored cross site scripting via CCSS and UCSS.

Reporter	Title	Published	Views	Family All 10
ATTACKERKB	CVE-2026-3375	27 May 202607:45	–	attackerkb
Circl	CVE-2026-3375	15 Jun 202615:38	–	circl
CNNVD	WordPress plugin LiteSpeed Cache 跨站脚本漏洞	27 May 202600:00	–	cnnvd
Cvelist	CVE-2026-3375 LiteSpeed Cache <= 7.7 - Unauthenticated Stored Cross-Site Scripting via QUIC.cloud CCSS/UCSS REST API Endpoints	27 May 202607:45	–	cvelist
EUVD	EUVD-2026-32115	27 May 202607:45	–	euvd
NVD	CVE-2026-3375	27 May 202608:16	–	nvd
Patchstack	WordPress LiteSpeed Cache plugin <= 7.7 - Unauthenticated Stored Cross-Site Scripting vulnerability	29 May 202613:33	–	patchstack
Positive Technologies	PT-2026-43546	27 May 202600:00	–	ptsecurity
RedhatCVE	CVE-2026-3375	5 Jun 202619:21	–	redhatcve
Vulnrichment	CVE-2026-3375 LiteSpeed Cache <= 7.7 - Unauthenticated Stored Cross-Site Scripting via QUIC.cloud CCSS/UCSS REST API Endpoints	27 May 202607:45	–	vulnrichment

Vulners

Node

litespeedtech litespeed_cacheRange≤7.7wordpress

[
  {
    "vendor": "litespeedtech",
    "product": "LiteSpeed Cache",
    "versions": [
      {
        "version": "0",
        "status": "affected",
        "lessThanOrEqual": "7.7",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

Source	Link
plugins	www.plugins.trac.wordpress.org/browser/litespeed-cache/trunk/src/router.cls.php
plugins	www.plugins.trac.wordpress.org/browser/litespeed-cache/trunk/src/css.cls.php
plugins	www.plugins.trac.wordpress.org/browser/litespeed-cache/trunk/src/optimize.cls.php
plugins	www.plugins.trac.wordpress.org/browser/litespeed-cache/trunk/src/cloud.cls.php
plugins	www.plugins.trac.wordpress.org/browser/litespeed-cache/trunk/src/css.cls.php
wordfence	www.wordfence.com/threat-intel/vulnerabilities/id/40fa29f5-525a-4986-91f9-0210a7594e46
plugins	www.plugins.trac.wordpress.org/changeset/3473912/
plugins	www.plugins.trac.wordpress.org/browser/litespeed-cache/trunk/src/rest.cls.php

Parameter	Position	Path	Description	CWE
css_content	request body	/wp-json/litespeed/v1/notify_ccss	Stored XSS via LiteSpeed Cache notify_ccss endpoint stores unvalidated CSS content and renders it inline on frontend.	CWE-79
css_content	request body	/wp-json/litespeed/v1/notify_ucss	Stored XSS via LiteSpeed Cache notify_ucss endpoint stores unvalidated CSS content and renders it inline on frontend.	CWE-79

17 Jun 2026 10:43Current

5.8Medium risk

Vulners AI Score5.8

CVSS 3.17.2

EPSS0.00252

SSVC

CWE-79