Improper Neutralization of Script in Attributes in XWiki (X)HTML renderers

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

9.0 · CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

EPSS

• CVE-2023-32070: 0.65% estimated exploitation activity in the next 30 days; percentile 51.30 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Impact HTML rendering didn't check for dangerous attributes/attribute values. This allowed cross-site scripting (XSS) attacks via attributes and link URLs, e.g., supported in XWiki syntax. Patches This has been patched in XWiki 14.6 RC1. Workarounds There are no known workarounds apart from upgrading to a fixed version. References https://github.com/xwiki/xwiki-rendering/commit/c40e2f5f9482ec6c3e71dbf1fff5ba8a5e44cdc1 https://jira.xwiki.org/browse/XRENDERING-663 For more information If you have any questions or comments about this advisory: Open an issue in Jira XWiki.org Email us at Security Mailing List

Published by the source

11 May 2023, 20:37 UTC

Last modified by the source

7 Nov 2023, 05:05 UTC

Source last checked

26 Oct 2026, 16:16 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-6gf5-c898-7rxp

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# Patch Next advisory brief: CVE-2023-32070

Advisory: Improper Neutralization of Script in Attributes in XWiki (X)HTML renderers
IDs: CVE-2023-32070, GHSA-6gf5-c898-7rxp
Record: https://patchnext.com/advisories/cve-2023-32070 (revision 1, source checked 26 Oct 2026, 16:16 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Critical (CVSS 9.0)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Partial vendor fix; fixed versions by package: org.xwiki.rendering:xwiki-rendering-syntax-html 14.6-rc-1; org.xwiki.platform:xwiki-platform-annotation-core 14.6-rc-1; org.xwiki.rendering:xwiki-rendering-syntax-annotatedxhtml 14.6-rc-1; org.xwiki.rendering:xwiki-rendering-syntax-annotatedhtml5 14.6-rc-1; org.xwiki.rendering:xwiki-rendering-syntax-html5 14.6-rc-1; org.xwiki.rendering:xwiki-rendering-syntax-xhtml 14.6-rc-1. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.xwiki.rendering:xwiki-rendering-syntax-html: affected < 14.6-rc-1; fixed in 14.6-rc-1
- Maven org.xwiki.platform:xwiki-platform-annotation-core: affected < 14.6-rc-1; fixed in 14.6-rc-1
- Maven org.xwiki.platform:xwiki-core-rendering-api: affected <= 3.0-milestone-2
- Maven org.xwiki.rendering:xwiki-rendering-syntax-annotatedxhtml: affected < 14.6-rc-1; fixed in 14.6-rc-1
- Maven org.xwiki.rendering:xwiki-rendering-syntax-annotatedhtml5: affected < 14.6-rc-1; fixed in 14.6-rc-1
- Maven org.xwiki.rendering:xwiki-rendering-syntax-html5: affected < 14.6-rc-1; fixed in 14.6-rc-1
- Maven org.xwiki.rendering:xwiki-rendering-syntax-xhtml: affected < 14.6-rc-1; fixed in 14.6-rc-1

## Suggested inspection (read-only)
- Maven org.xwiki.rendering:xwiki-rendering-syntax-html: check the installed version with your package manager.
- Maven org.xwiki.platform:xwiki-platform-annotation-core: check the installed version with your package manager.
- Maven org.xwiki.platform:xwiki-core-rendering-api: check the installed version with your package manager.
- Maven org.xwiki.rendering:xwiki-rendering-syntax-annotatedxhtml: check the installed version with your package manager.
- Maven org.xwiki.rendering:xwiki-rendering-syntax-annotatedhtml5: check the installed version with your package manager.
- Maven org.xwiki.rendering:xwiki-rendering-syntax-html5: check the installed version with your package manager.
- Maven org.xwiki.rendering:xwiki-rendering-syntax-xhtml: check the installed version with your package manager.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on org.xwiki.rendering:xwiki-rendering-syntax-html, org.xwiki.platform:xwiki-platform-annotation-core, org.xwiki.platform:xwiki-core-rendering-api, org.xwiki.rendering:xwiki-rendering-syntax-annotatedxhtml, org.xwiki.rendering:xwiki-rendering-syntax-annotatedhtml5, org.xwiki.rendering:xwiki-rendering-syntax-html5, org.xwiki.rendering:xwiki-rendering-syntax-xhtml.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-6gf5-c898-7rxp (GitHub-reviewed advisory GHSA-6gf5-c898-7rxp lists affected ranges: Maven org.xwiki.rendering:xwiki-rendering-syntax-xhtml >=0 =0 =0 =0 =0 <14.6-rc-1; Maven org.xwiki.rendering:xwiki-rendering-syntax-annotatedhtml5…)

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