What is CVE-2023-35160?

CVE-2023-35160 is a critical-severity vulnerability in Xwiki, classified under Improper Neutralization of Alternate XSS Syntax. CVSS score: 9.6/10. Published 2023-06-23.

How severe is CVE-2023-35160?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Is CVE-2023-35160 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Xwiki

CVE-2023-35160

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Users are able to forge an URL with a payload allowing to inject Javascript in the page (XSS). It's possible to exploit the resubmit template to perform a XSS, e.g. by using URL such as: > xwiki/bin/view/XWiki/Main xpage=resubmit&resubmit=javascript:alert(document.domain)&xback=javascript:alert(document.domain). This vulnerability exists since XWiki 2.5-milestone-2. The vulnerability has been patched in XWiki 14.10.5 and 15.1-rc-1.

Published 2023-06-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.023 (82.8th percentile), scored 2026-10-19.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000

Affected products

Xwiki — versions 2.5, 15.0
Xwiki Xwiki-Platform — versions >= 2.5-milestone-2, < 14.10.5, >= 15.0-rc-1, < 15.1-rc-1

Weakness classification (CWE)

Public proof-of-concept exploits

20142995/nuclei-templates

References

github.com/xwiki/xwiki-platform/security/advisories/GHSA-r8xc-xxh3-q5x3 (Vendor Advisory)
github.com/xwiki/xwiki-platform/commit/dbc92dcdace33823ffd1e1591617006cb5fc6a7f (Patch, Vendor Advisory)
jira.xwiki.org/browse/XWIKI-20343 (Permissions Required, Issue Tracking, Vendor Advisory)
jira.xwiki.org/browse/XWIKI-20583 (Patch, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2023-35160?: CVE-2023-35160 is a critical-severity vulnerability in Xwiki, classified under Improper Neutralization of Alternate XSS Syntax. CVSS score: 9.6/10. Published 2023-06-23.
How severe is CVE-2023-35160?: Critical severity. CVSS v3 base score is 9.6 out of 10.
Is CVE-2023-35160 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.