--- title: "CVE-2023-45134: XWiki Platform XSS vulnerability from account in the create page form via template provider" url: https://erroneo.us/security/cve/CVE-2023-45134/ description: "CVE-2023-45134 (org.xwiki.platform:xwiki-platform-web-templates (Maven)): XWiki Platform is a generic wiki platform offering runtime services for…" type: vulnerability-record section: "Security Digest" date_published: 2023-10-25 date_modified: 2024-09-10 publisher: erroneo.us author: erroneo.us Security Desk cve: "CVE-2023-45134" kev: false cvss: 9.1 epss: 0.01834 license: All rights reserved. Quote with attribution and a link. --- # CVE-2023-45134: XWiki Platform XSS vulnerability from account in the create page form via template provider **Signal:** Critical, preconditions apply. Severe if exploited, but exploitation needs conditions that may not apply to you. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.) ## Should you act? - Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists. - EPSS 1.8% , percentile 79: FIRST’s model estimates a 1.8% chance of exploitation activity in the next 30 days, higher than 79% of all scored CVEs (moderate). EPSS is a probability, not a verdict. - Needs an account (low (any account)). Exposure depends on who can log in. - Only applies if your dependency tree includes org.xwiki.platform:xwiki-platform-web-templates (Maven) < 14.10.12, fixed in 14.10.12 ; org.xwiki.platform:xwiki-platform-web-templates (Maven) >= 15.0-rc-1, < 15.5-rc-1, fixed in 15.5-rc-1 ; org.xwiki.platform:xwiki-web-standard (Maven) >= 2.4-milestone-2, < 3.1-milestone-1, fixed in 3.1-milestone-1 ; org.xwiki.platform:xwiki-platform-web (Maven) >= 3.1-milestone-1, < 13.4-rc-1, fixed in 13.4-rc-1 . Check your lockfile, including transitive dependencies. ## What it is XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. org.xwiki.platform:xwiki-platform-web starting in version 3.1-milestone-1 and prior to 13.4-rc-1, org.xwiki.platform:xwiki-platform-web-templates prior to versions 14.10.2 and 15.5-rc-1, and org.xwiki.platform:xwiki-web-standard starting in version 2.4-milestone-2 and prior to version 3.1-milestone-1 are vulnerable to cross-site scripting. An attacker can create a template provider on any document that is part of the wiki (could be the attacker's user profile) that contains malicious code. This code is executed when this template provider is selected during document creation which can be triggered by sending the user to a URL. For the attacker, the only requirement is to have an account as by default the own user profile is editable. This allows an attacker to execute arbitrary actions with the rights of the user opening the malicious link. Depending on the rights of the user, this may allow remote code execution and full read and write access to the whole XWiki installation. This has been patched in org.xwiki.platform:xwiki-platform-web 13.4-rc-1, org.xwiki.platform:xwiki-platform-web-templates 14.10.2 and 15.5-rc-1, and org.xwiki.platform:xwiki-web-standard 3.1-milestone-1 by adding the appropriate escaping. The vulnerable template file createinline.vm is part of XWiki's WAR and can be patched by manually applying the changes from the fix. ## Affected packages - Maven `org.xwiki.platform:xwiki-platform-web-templates` < 14.10.12 → fixed: 14.10.12 - Maven `org.xwiki.platform:xwiki-platform-web-templates` >= 15.0-rc-1, < 15.5-rc-1 → fixed: 15.5-rc-1 - Maven `org.xwiki.platform:xwiki-web-standard` >= 2.4-milestone-2, < 3.1-milestone-1 → fixed: 3.1-milestone-1 - Maven `org.xwiki.platform:xwiki-platform-web` >= 3.1-milestone-1, < 13.4-rc-1 → fixed: 13.4-rc-1 ## Affected products (CVE record) - xwiki xwiki-platform: >= 3.1-milestone-1, < 13.4-rc-1, >= 2.4-milestone-2, < 3.1-milestone-1, >= 14.0-rc-1, < 14.10.12, >= 15.0-rc-1, < 15.5-rc-1 ## Severity - GitHub_M CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H` - GitHub CVSS 3.1: 9.0 `CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H` ## Exploitation - CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA). - CISA SSVC assessment: exploitation poc , automatable no , technical impact total . - FIRST EPSS (model of 2026-10-21): 1.83% probability of exploitation activity in the next 30 days; percentile 79. ## Sources - [GitHub Advisory GHSA-gr82-8fj2-ggc3](https://github.com/advisories/GHSA-gr82-8fj2-ggc3) - [CVE.org record CVE-2023-45134](https://www.cve.org/CVERecord?id=CVE-2023-45134) - [NVD entry CVE-2023-45134](https://nvd.nist.gov/vuln/detail/CVE-2023-45134) - [github.com](https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-gr82-8fj2-ggc3) - [github.com](https://github.com/xwiki/xwiki-platform/commit/ba56fda175156dd35035f2b8c86cbd8ef1f90c2e) - [jira.xwiki.org](https://jira.xwiki.org/browse/XWIKI-20962) --- Source page: https://erroneo.us/security/cve/CVE-2023-45134/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt