NIST deprecates RSA-2048 from 2030. Find every one of them before attackers do.
☕
☕ Maven
Not in CISA KEV
CRITICAL severity

XWiki Platform CSRF remote code execution through the realtime HTML Converter APIGHSA-r5vh-gc3r-r24w

CRITICALFix: xwiki/xwiki-platform@4896712

GHSA-r5vh-gc3r-r24w is a critical-severity (CVSS 9.6) Cross-Site Request Forgery (CSRF) vulnerability in org.xwiki.platform:xwiki-platform-realtime-ui. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for org.xwiki.platform:xwiki-platform-realtime-ui — see the affected versions and patch details below.

Also known asCVE-2024-31988
Published
Updated
Affected
3 pkgs
Patched
3 / 3
Exploits
1 known
Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
  • A successful exploit gives an attacker total control of the affected component, not partial access.

Exploitation and automatability from CISA’s SSVC triage for GHSA-r5vh-gc3r-r24w.

EPSS Exploitation Probability

via FIRST.org ↗
0.7%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs53th percentile — riskier than 53% of all scored CVEsHighest risk
0.00%2.92%5.84%8.76%6.9%0.7%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

3 pkgs affected
☕org.xwiki.platform:xwiki-platform-realtime-ui☕org.xwiki.platform:xwiki-platform-realtime-ui☕org.xwiki.platform:xwiki-platform-realtime-ui

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

Impact

When the realtime editor is installed in XWiki, it allows arbitrary remote code execution with the interaction of an admin user with programming right. More precisely, by getting an admin user to either visit a crafted URL or to view an image with this URL that could be in a comment, the attacker can get the admin to execute arbitrary XWiki syntax including scripting macros with Groovy or Python code. This compromises the confidentiality, integrity and availability of the whole XWiki installation.

To reproduce on an XWiki installation, as an admin, click on <xwiki-host>/xwiki/bin/get/RTFrontend/ConvertHTML?wiki=xwiki&space=Main&page=WebHome&text=%7B%7Bvelocity%7D%7D%24logtool.error%28%22Hello%20from%20Velocity%20%21%22%29%7B%7B%2Fvelocity%7D%7D. If the error "Hello from Velocity!" gets logged then the installation is vulnerable.

Patches

This vulnerability has been patched in XWiki 14.10.19, 15.5.4 and 15.9.

Workarounds

Update RTFrontend.ConvertHTML following this patch. This will, however, break some synchronization processes in the realtime editor, so upgrading should be the preferred way on installations where this editor is used.

References

Affected Packages

3 total 3 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.xwiki.platform:xwiki-platform-realtime-ui≥ 13.9-rc-1&&< 14.10.1914.10.19org.xwiki.platform:xwiki-platform-realtime-ui:14.10.19
☕Mavenorg.xwiki.platform:xwiki-platform-realtime-ui≥ 15.0-rc-1&&< 15.5.415.5.4org.xwiki.platform:xwiki-platform-realtime-ui:15.5.4
☕Mavenorg.xwiki.platform:xwiki-platform-realtime-ui≥ 15.6-rc-1&&< 15.915.9org.xwiki.platform:xwiki-platform-realtime-ui:15.9

Affected Products

1 product · 3 configurations
Application
xwikixwiki
≥ 15.6 && < 15.9
range
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

XWiki Platform is a generic wiki platform. Starting in version 13.9-rc-1…

jira.xwiki.orgNVDJan 2025

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.xwiki.platform:xwiki-platform-realtime-ui, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.xwiki.platform:xwiki-platform-realtime-ui to 14.10.19 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-r5vh-gc3r-r24w is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

### Impact When the realtime editor is installed in XWiki, it allows arbitrary remote code execution with the interaction of an admin user with programming right. More precisely, by getting an admin user to either visit a crafted URL or to view an image with this URL that could be in a comment, the attacker can get the admin to execute arbitrary XWiki syntax including scripting macros with Groovy or Python code. This compromises the confidentiality, integrity and availability of the whole XWiki installation. To reproduce on an XWiki installation, as an admin, click on `<xwiki-host>/xwiki/bin/
O3 Security · Impact-Aware SCA

Is GHSA-r5vh-gc3r-r24w in your dependencies?

Find it across Maven, including transitive dependencies.

Scan my dependencies How O3 SCA works
XWiki Platform CSRF remote code execution through the…