How severe is CVE-2023-29203?

CVE-2023-29203 has a CVSS score of 3.7/10, rated LOW. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2023-29203?

CVE-2023-29203 affects the following packages: org.xwiki.platform:xwiki-platform-web-templates (Maven), org.xwiki.platform:xwiki-platform-web-templates (Maven), org.xwiki.platform:xwiki-platform-web-templates (Maven). Ecosystems affected: Maven.

How do I fix CVE-2023-29203?

Update org.xwiki.platform:xwiki-platform-web-templates to 13.10.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-29203 is resolved across your whole dependency graph.

How do I detect CVE-2023-29203 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-web-templates, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2023-29203 if there is no patch (or I can't update yet)?

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.

Is CVE-2023-29203 actively exploited in the wild?

Yes. There are 2 known exploit references for CVE-2023-29203, 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-2023-29203?

CVE-2023-29203 has an EPSS (Exploit Prediction Scoring System) score of 0.7%, placing it in the 53th 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-2023-29203?

CVE-2023-29203 is classified as CWE-359 (CWE-359), CWE-668 (CWE-668). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2023-29203 published, and has it been updated?

CVE-2023-29203 was published on April 15, 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

LOW severity

CVE-2023-29203 — xwiki-platform-web-templa…

LOWFix: xwiki/xwiki-platform#1883

CVE-2023-29203 is a low-severity (CVSS 3.7) CWE-359 vulnerability in org.xwiki.platform:xwiki-platform-web-templates. 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-web-templates — see the affected versions and patch details below.

Unauthenticated user can have information about hidden users on subwikis through uorgsuggest.vm

Also known asGHSA-vvp7-r422-rx83

Published

Apr 15, 2023

Updated

Oct 28, 2026

Affected

3 pkgs

Patched

3 / 3

Exploits

2 known

Exploitation data as of Nov 3, 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-2023-29203.

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

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-web-templates☕org.xwiki.platform:xwiki-platform-web-templates☕org.xwiki.platform:xwiki-platform-web-templates

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

It's possible to list some users who are normally not viewable from subwiki by requesting users on a subwiki which allows only global users with uorgsuggest.vm. This issue only concerns hidden users from main wiki. Note that the disclosed information are the username and the first and last name of users, no other information is leaked.

Patches

The problem has been patched on XWiki 13.10.8, 14.4.3 and 14.7RC1.

Workarounds

It's possible to workaround this vulnerability by patching directly uorgsuggest.vm to apply the same changes as in https://github.com/xwiki/xwiki-platform/pull/1883.

References

JIRA ticket: https://jira.xwiki.org/browse/XWIKI-20007
this vulnerability is actually a remaining of https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-97jg-43c9-q6pf which wasn't entirely fixed back then

For more information

If you have any questions or comments about this advisory:

Open an issue in Jira
Email us at security ML

Affected Packages

3 total 3 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.xwiki.platform:xwiki-platform-web-templates`	≥ 13.9-rc-1&&< 13.10.8	13.10.8`org.xwiki.platform:xwiki-platform-web-templates:13.10.8`
☕Maven	`org.xwiki.platform:xwiki-platform-web-templates`	≥ 14.0-rc-1&&< 14.4.3	14.4.3`org.xwiki.platform:xwiki-platform-web-templates:14.4.3`
☕Maven	`org.xwiki.platform:xwiki-platform-web-templates`	≥ 14.5&&< 14.7-rc-1	14.7-rc-1`org.xwiki.platform:xwiki-platform-web-templates:14.7-rc-1`

Affected Products

1 product · 4 configurations

Application

xwikixwiki

≥ 14.5 && ≤ 14.6

1 version

13.9

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 Commons are technical libraries common to several other top level …

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-web-templates, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.xwiki.platform:xwiki-platform-web-templates to 13.10.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-29203 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.

Frequently Asked Questions

### Impact It's possible to list some users who are normally not viewable from subwiki by requesting users on a subwiki which allows only global users with `uorgsuggest.vm`. This issue only concerns hidden users from main wiki. Note that the disclosed information are the username and the first and last name of users, no other information is leaked. ### Patches The problem has been patched on XWiki 13.10.8, 14.4.3 and 14.7RC1. ### Workarounds It's possible to workaround this vulnerability by patching directly `uorgsuggest.vm ` to apply the same changes as in https://github.com/xwiki/xwiki