XWiki Platform vulnerable to stored cross-site scripting in ClassEditSheet page via name parameters

published 2023-06-20 3 y ago modified 2026-09-10 1 mo ago also GHSA-4wc6-hqv9-qc97 , EUVD-2023-1691

cvss: 9.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits: 0; none known

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.

Patch / fix

fixed in 2 links 2

maven org.xwiki.platform:xwiki-platform-appwithinminutes-ui 14.4.8, 14.10.4, 15.0
xwiki xwiki 14.4.8, 14.10.4

github.com/xwiki/xwiki-platform@1b87fec commit
jira.xwiki.org/browse/XWIKI-20365 advisory

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 23 mo ago (2024-11-29)

Exploit prediction

0.74% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

jira.xwiki.org https://jira.xwiki.org/browse/XWIKI-20365 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
NVD	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
GitHub	3.1	9.0	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
maven	org.xwiki.platform:xwiki-platform-appwithinminutes-ui	>=5.4.4, <14.4.8 >=14.5, <14.10.4 >=15.0-rc-1, <15.0	14.4.8 14.10.4 15.0

Affected products

xwiki xwiki-platform

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation
CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page

References

github.com /xwiki/xwiki-platform/commit/1b87fec1e5b5ec00b7a8c3c3f94f6c5e22547392#diff-79e725ec7125cced7d302e1a1f955a76745
web, patch, vendor-advisory
jira.xwiki.org /browse/XWIKI-20365
web, exploit, issue-tracking, patch, vendor-advisory
github.com /xwiki/xwiki-platform/security/advisories/GHSA-4wc6-hqv9-qc97
web, vendor-advisory
nvd.nist.gov /vuln/detail/CVE-2023-35153
advisory
github.com /xwiki/xwiki-platform
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary