How severe is CVE-2023-29515?

CVE-2023-29515 has a CVSS score of 7.7/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2023-29515?

CVE-2023-29515 affects the following packages: org.xwiki.platform:xwiki-platform-appwithinminutes (Maven), org.xwiki.platform:xwiki-platform-appwithinminutes-ui (Maven), org.xwiki.platform:xwiki-platform-appwithinminutes-ui (Maven), org.xwiki.platform:xwiki-platform-appwithinminutes-ui (Maven). Ecosystems affected: Maven.

How do I fix CVE-2023-29515?

Update org.xwiki.platform:xwiki-platform-appwithinminutes to 4.2-milestone-1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-29515 is resolved across your whole dependency graph.

How do I detect CVE-2023-29515 in my Maven dependencies?

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

How do I mitigate CVE-2023-29515 if there is no patch (or I can't update yet)?

Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Is CVE-2023-29515 actively exploited in the wild?

Yes. There are 2 known exploit references for CVE-2023-29515, including 2 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2023-29515?

CVE-2023-29515 has an EPSS (Exploit Prediction Scoring System) score of 0.6%, placing it in the 47th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2023-29515?

CVE-2023-29515 is classified as Cross-site Scripting (XSS) (CWE-79). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was CVE-2023-29515 published, and has it been updated?

CVE-2023-29515 was published on April 18, 2023 and was last updated on October 28, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕

☕ Maven

Not in CISA KEV

HIGH severity

CVE-2023-29515 — xwiki-platform-appwithinm…

HIGHFix: xwiki/xwiki-platform@e73b890

CVE-2023-29515 is a high-severity (CVSS 7.7) Cross-site Scripting (XSS) vulnerability in org.xwiki.platform:xwiki-platform-appwithinminutes. 2 public exploit or proof-of-concept references are indexed, so weaponization risk is real. A fix is available for org.xwiki.platform:xwiki-platform-appwithinminutes — see the affected versions and patch details below.

Cross-site scripting (XSS) in xwiki-platform

Also known asGHSA-44h9-xxvx-pg6x

Published

Apr 18, 2023

Updated

Oct 28, 2026

Affected

4 pkgs

Patched

4 / 4

Exploits

2 known

Exploitation data as of Nov 5, 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.

Exploitation and automatability from CISA’s SSVC triage for CVE-2023-29515.

EPSS Exploitation Probability

via FIRST.org ↗

0.6%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs47th percentile — riskier than 47% of all scored CVEsHighest risk

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

4 pkgs affected

☕org.xwiki.platform:xwiki-platform-appwithinminutes☕org.xwiki.platform:xwiki-platform-appwithinminutes-ui☕org.xwiki.platform:xwiki-platform-appwithinminutes-ui☕org.xwiki.platform:xwiki-platform-appwithinminutes-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

Any user who can create a space can become admin of that space through App Within Minutes. The admin right implies the script right and thus allows JavaScript injection. The vulnerability can be exploited by creating an app in App Within Minutes. If the button should be disabled because the user doesn't have global edit right, the app can also be created by directly opening /xwiki/bin/view/AppWithinMinutes/CreateApplication?wizard=true on the XWiki installation.

Patches

This has been patched in XWiki 13.10.11, 14.4.8, 14.10.1 and 15.0 RC1 by not granting the space admin right if the user doesn't have script right on the space where the app is created. Error message are displayed to warn the user that the app will be broken in this case. Users who became space admin through this vulnerability won't loose the space admin right due to the fix, so it is advised to check if all users who created AWM apps should keep their space admin rights.

Workarounds

The patch can be applied by patching the affected wiki documents, the most important one being AppWithinMinutes.LiveTableEditSheet. Further, the attack can be prevented by denying view access to AppWithinMinutes.LiveTableEditSheet. This only impacts creation and editing of App Within Minutes apps.

References

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

Affected Packages

4 total 4 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.xwiki.platform:xwiki-platform-appwithinminutes`	≥ 4.0-milestone-2&&< 4.2-milestone-1	4.2-milestone-1`org.xwiki.platform:xwiki-platform-appwithinminutes:4.2-milestone-1`
☕Maven	`org.xwiki.platform:xwiki-platform-appwithinminutes-ui`	≥ 4.2-milestone-1&&< 13.10.11	13.10.11`org.xwiki.platform:xwiki-platform-appwithinminutes-ui:13.10.11`
☕Maven	`org.xwiki.platform:xwiki-platform-appwithinminutes-ui`	≥ 14.0-rc-1&&< 14.4.8	14.4.8`org.xwiki.platform:xwiki-platform-appwithinminutes-ui:14.4.8`
☕Maven	`org.xwiki.platform:xwiki-platform-appwithinminutes-ui`	≥ 14.5&&< 14.10.1	14.10.1`org.xwiki.platform:xwiki-platform-appwithinminutes-ui:14.10.1`

Affected Products

1 product · 3 configurations

Application

xwikixwiki

≥ 14.5 && < 14.10.1

range

Exploits & PoCs

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 offering runtime services for …

github.comNVDApr 2023

Report on jira.xwiki.org

jira.xwiki.orgNVDApr 2023

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.xwiki.platform:xwiki-platform-appwithinminutes, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.xwiki.platform:xwiki-platform-appwithinminutes to 4.2-milestone-1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-29515 is resolved across your whole dependency graph.
Workarounds
Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

### Impact Any user who can create a space can become admin of that space through App Within Minutes. The admin right implies the script right and thus allows JavaScript injection. The vulnerability can be exploited by creating an app in App Within Minutes. If the button should be disabled because the user doesn't have global edit right, the app can also be created by directly opening `/xwiki/bin/view/AppWithinMinutes/CreateApplication?wizard=true` on the XWiki installation. ### Patches This has been patched in XWiki 13.10.11, 14.4.8, 14.10.1 and 15.0 RC1 by not granting the space admin right