CVE-2023-35153 is a critical-severity (CVSS 9) vulnerability in org.xwiki.platform:xwiki-platform-appwithinminutes-ui. 1 public exploit reference exists, so weaponization risk is real. A fix is available for org.xwiki.platform:xwiki-platform-appwithinminutes-ui — see the affected versions and patch details below.
XWiki Platform vulnerable to stored cross-site scripting in ClassEditSheet page via name parameters
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 CVE-2023-35153.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
CVE-2023-35153 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 376,715 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
org.xwiki.platform:xwiki-platform-appwithinminutes-ui☕org.xwiki.platform:xwiki-platform-appwithinminutes-ui☕org.xwiki.platform:xwiki-platform-appwithinminutes-uiReal-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
XWiki Platform is a generic wiki platform. Starting in version 5.4.4 and prior to versions 14.4.8, 14.10.4, and 15.0, a stored cross-site scripting vulnerability can be exploited by users with edit rights by adding a AppWithinMinutes.FormFieldCategoryClass class on a page and setting the payload on the page title. Then, any user visiting /xwiki/bin/view/AppWithinMinutes/ClassEditSheet executes the payload. The issue has been patched in XWiki 14.4.8, 14.10.4, and 15.0. As a workaround, update AppWithinMinutes.ClassEditSheet with a patch.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.xwiki.platform:xwiki-platform-appwithinminutes-ui | ≥ 5.4.4&&< 14.4.8 | 14.4.8org.xwiki.platform:xwiki-platform-appwithinminutes-ui:14.4.8 |
| ☕Maven | org.xwiki.platform:xwiki-platform-appwithinminutes-ui | ≥ 14.5&&< 14.10.4 | 14.10.4org.xwiki.platform:xwiki-platform-appwithinminutes-ui:14.10.4 |
| ☕Maven | org.xwiki.platform:xwiki-platform-appwithinminutes-ui | ≥ 15.0-rc-1&&< 15.0 | 15.0org.xwiki.platform:xwiki-platform-appwithinminutes-ui:15.0 |
Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.xwiki.platform:xwiki-platform-appwithinminutes-ui, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.xwiki.platform:xwiki-platform-appwithinminutes-ui to 14.4.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-35153 is resolved across your whole dependency graph.
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.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2023-35153 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2023-35153. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2023-35153 in your dependencies?
O3 Security finds CVE-2023-35153 across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.