How severe is CVE-2023-35151?

CVE-2023-35151 has a CVSS score of 7.5/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2023-35151?

CVE-2023-35151 affects the following packages: org.xwiki.platform:xwiki-platform-rest-server (Maven), org.xwiki.platform:xwiki-platform-rest-server (Maven), org.xwiki.platform:xwiki-platform-rest-server (Maven). Ecosystems affected: Maven.

How do I fix CVE-2023-35151?

Update org.xwiki.platform:xwiki-platform-rest-server to 14.4.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-35151 is resolved across your whole dependency graph.

How do I detect CVE-2023-35151 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-rest-server, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2023-35151 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-2023-35151 actively exploited in the wild?

No public exploit code has been indexed for CVE-2023-35151 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2023-35151?

CVE-2023-35151 has an EPSS (Exploit Prediction Scoring System) score of 0.7%, placing it in the 54th 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-2023-35151?

CVE-2023-35151 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-2023-35151 published, and has it been updated?

CVE-2023-35151 was published on June 23, 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-2023-35151 — xwiki-platform-rest-server

HIGHFix: xwiki/xwiki-platform@824cd74

CVE-2023-35151 is a high-severity (CVSS 7.5) CWE-359 vulnerability in org.xwiki.platform:xwiki-platform-rest-server. A fix is available for org.xwiki.platform:xwiki-platform-rest-server — see the affected versions and patch details below.

XWiki Platform may show email addresses in clear in REST results

Also known asGHSA-8g9c-c9cm-9c56

Published

Jun 23, 2023

Updated

Oct 28, 2026

Affected

3 pkgs

Patched

3 / 3

Exploits

None indexed

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.
CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.

Exploitation and automatability from CISA’s SSVC triage for CVE-2023-35151.

EPSS Exploitation Probability

via FIRST.org ↗

0.7%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs54th percentile — riskier than 54% 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-rest-server☕org.xwiki.platform:xwiki-platform-rest-server☕org.xwiki.platform:xwiki-platform-rest-server

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 can call a REST endpoint and obtain the obfuscated passwords (even when the mail obfuscation is activated).

For instance, by calling http://localhost:8080/xwiki/rest/wikis/xwiki/spaces/XWiki/pages/U1/objects/XWiki.XWikiUsers/0 when user U1 exists on wiki xwiki.

Patches

The issue has been patched on XWiki 14.4.8, 14.10.6, and 15.1

Workarounds

There is no known workaround. It is advised to upgrade to one of the patched versions.

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

3 total 3 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.xwiki.platform:xwiki-platform-rest-server`	≥ 7.3-milestone-1&&< 14.4.8	14.4.8`org.xwiki.platform:xwiki-platform-rest-server:14.4.8`
☕Maven	`org.xwiki.platform:xwiki-platform-rest-server`	≥ 14.5&&< 14.10.6	14.10.6`org.xwiki.platform:xwiki-platform-rest-server:14.10.6`
☕Maven	`org.xwiki.platform:xwiki-platform-rest-server`	≥ 15.0-rc-1&&< 15.1	15.1`org.xwiki.platform:xwiki-platform-rest-server:15.1`

Affected Products

1 product · 5 configurations

Application

xwikixwiki

≥ 14.10 && < 14.10.6

2 versions

7.315.0

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-rest-server, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.xwiki.platform:xwiki-platform-rest-server to 14.4.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-35151 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 Any user can call a REST endpoint and obtain the obfuscated passwords (even when the mail obfuscation is activated). For instance, by calling http://localhost:8080/xwiki/rest/wikis/xwiki/spaces/XWiki/pages/U1/objects/XWiki.XWikiUsers/0 when user `U1` exists on wiki `xwiki`. ### Patches The issue has been patched on XWiki 14.4.8, 14.10.6, and 15.1 ### Workarounds There is no known workaround. It is advised to upgrade to one of the patched versions. ### References - https://jira.xwiki.org/browse/XWIKI-16138 - https://github.com/xwiki/xwiki-platform/commit/824cd742ecf5439971247da1