CVE-2026-26000

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Prior to 17.9.0, 17.4.6, and 16.10.13, it's possible using comments to inject CSS that would transform the full wiki in a link area leading to a malicious page. This vulnerability is fixed in 17.9.0, 17.4.6, and 16.10.13.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-17.4.6	Product Release Notes
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-74rh-c5rh-88vg	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:xwiki:xwiki::::::::
	cpe:2.3:a:xwiki:xwiki::::::::
	cpe:2.3:a:xwiki:xwiki::::::::

History

19 Feb 2026, 19:22

Type	Values Removed	Values Added
CPE		cpe:2.3:a:xwiki:xwiki::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.1
First Time		Xwiki Xwiki xwiki
References	~~() https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-17.4.6 -~~	() https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-17.4.6 - Product, Release Notes
References	~~() https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-74rh-c5rh-88vg -~~	() https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-74rh-c5rh-88vg - Patch, Vendor Advisory

12 Feb 2026, 21:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-12 21:16

Updated : 2026-02-19 19:22

NVD link : CVE-2026-26000

Mitre link : CVE-2026-26000

CVE.ORG link : CVE-2026-26000

JSON object : View

Products Affected

xwiki

xwiki

CWE

CWE-1021

Improper Restriction of Rendered UI Layers or Frames

{"id": "CVE-2026-26000", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.8}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 5.3, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-02-12T21:16:02.990", "references": [{"url": "https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-17.4.6", "tags": ["Product", "Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-74rh-c5rh-88vg", "tags": ["Patch", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-1021"}]}], "descriptions": [{"lang": "en", "value": "XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Prior to 17.9.0, 17.4.6, and 16.10.13, it's possible using comments to inject CSS that would transform the full wiki in a link area leading to a malicious page. This vulnerability is fixed in 17.9.0, 17.4.6, and 16.10.13."}], "lastModified": "2026-02-19T19:22:44.910", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BD27F4BE-5B60-4344-AABC-5B0ACB0979B0", "versionEndExcluding": "16.10.13"}, {"criteria": "cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B4E1AB52-A76A-42E2-B103-B57336D534A3", "versionEndExcluding": "17.4.6", "versionStartIncluding": "17.0.0"}, {"criteria": "cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7B71A850-0DFE-4298-BF53-2AF0D6A0DBC3", "versionEndExcluding": "17.9.0", "versionStartIncluding": "17.5.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}