---
title: "CVE-2025-53837: org.xwiki.rendering:xwiki-rendering-xml has an Eval Injection issue"
url: https://erroneo.us/security/cve/CVE-2025-53837/
description: "CVE-2025-53837 (org.xwiki.rendering:xwiki-rendering-xml (Maven)): XWiki Rendering is a generic rendering system that converts textual input in a given…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-09-18
date_modified: 2026-09-21
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-53837"
kev: false
cvss: 9.9
epss: 0.00642
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-53837: org.xwiki.rendering:xwiki-rendering-xml has an Eval Injection issue

**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?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.6% , percentile 50: FIRST’s model estimates a 0.6% chance of exploitation activity in the next 30 days, higher than 50% 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.rendering:xwiki-rendering-xml (Maven) < 14.10.2, fixed in 14.10.2 . Check your lockfile, including transitive dependencies.

## What it is

XWiki Rendering is a generic rendering system that converts textual input in a given syntax (wiki syntax, HTML, etc) into another syntax (XHTML, etc). Prior to versions 14.10.2 and 15.0 RC1, any user who can edit their own user profile or any other document can execute arbitrary script macros including Groovy and Python macros that allow remote code execution including unrestricted read and write access to all wiki contents. The reason is that rendering output is included as content of HTML macros without further escaping and it is thus possible to close the HTML macro and inject script macros that are executed with programming rights. This has been patched in XWiki 14.10.2 and 15.0 RC1 by making sure that rendering output cannot close the surrounding HTML macro. A possible workaround is available. It is, in principle, possible to add escaping to all places where rendering output is used in wiki documents, but at the moment there is no list of them.

## Affected packages

- Maven `org.xwiki.rendering:xwiki-rendering-xml` < 14.10.2 → fixed: 14.10.2

## Affected products (CVE record)

- xwiki xwiki-rendering: < 14.10.2

## Severity

- GitHub_M CVSS 3.1: 9.9 `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.9 `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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 none , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.64% probability of exploitation activity in the next 30 days; percentile 50.

## Sources

- [GitHub Advisory GHSA-26vp-8gxg-v4pg](https://github.com/advisories/GHSA-26vp-8gxg-v4pg)
- [CVE.org record CVE-2025-53837](https://www.cve.org/CVERecord?id=CVE-2025-53837)
- [NVD entry CVE-2025-53837](https://nvd.nist.gov/vuln/detail/CVE-2025-53837)
- [github.com](https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-26vp-8gxg-v4pg)
- [github.com](https://github.com/xwiki/xwiki-rendering/commit/92bc8095ed3acce15ab200c8525e1623b4898be5)
- [github.com](https://github.com/xwiki/xwiki-rendering/releases/tag/xwiki-rendering-14.10.2)
- [github.com](https://github.com/xwiki/xwiki-rendering/releases/tag/xwiki-rendering-15.0-rc-1)
- [jira.xwiki.org](https://jira.xwiki.org/browse/XRENDERING-693)
- [jira.xwiki.org](https://jira.xwiki.org/browse/XWIKI-20313)
- [jira.xwiki.org](https://jira.xwiki.org/browse/XWIKI-20327)

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Source page: https://erroneo.us/security/cve/CVE-2025-53837/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt