How severe is CVE-2023-29204?

CVE-2023-29204 has a CVSS score of 4.7/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2023-29204?

CVE-2023-29204 affects the following packages: org.xwiki.platform:xwiki-platform-oldcore (Maven), org.xwiki.platform:xwiki-platform-oldcore (Maven), org.xwiki.platform:xwiki-platform-oldcore (Maven). Ecosystems affected: Maven.

How do I fix CVE-2023-29204?

Update org.xwiki.platform:xwiki-platform-oldcore to 13.10.10 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-29204 is resolved across your whole dependency graph.

How do I detect CVE-2023-29204 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-oldcore, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2023-29204 if there is no patch (or I can't update yet)?

Stop reflecting attacker-controlled destinations: resolve every redirect target against an allowlist of paths or hosts you own, prefer a server-side key over a full URL in the request, and reject absolute URLs entirely where the flow only ever needs a relative one.

Is CVE-2023-29204 actively exploited in the wild?

Yes. There are 3 known exploit references for CVE-2023-29204, including 3 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-2023-29204?

CVE-2023-29204 has an EPSS (Exploit Prediction Scoring System) score of 1.8%, placing it in the 78th 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-2023-29204?

CVE-2023-29204 is classified as Open Redirect (CWE-601). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Is there exploit tooling available for CVE-2023-29204?

A Nuclei detection template exists for CVE-2023-29204, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was CVE-2023-29204 published, and has it been updated?

CVE-2023-29204 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

MEDIUM severity

CVE-2023-29204 — xwiki-platform-oldcore

MEDIUMFix: xwiki/xwiki-platform@e4f7f68

CVE-2023-29204 is a medium-severity (CVSS 4.7) Open Redirect vulnerability in org.xwiki.platform:xwiki-platform-oldcore. 3 public exploit or proof-of-concept references are indexed, so weaponization risk is real. A fix is available for org.xwiki.platform:xwiki-platform-oldcore — see the affected versions and patch details below.

URL Redirection to Untrusted Site ('Open Redirect') in org.xwiki.platform:xwiki-platform-oldcore

Also known asGHSA-xwph-x6xj-wggv

Published

Apr 15, 2023

Updated

Oct 28, 2026

Affected

3 pkgs

Patched

3 / 3

Exploits

3 known

Exploitation data as of Nov 5, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2023-29204.

EPSS Exploitation Probability

via FIRST.org ↗

1.8%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs78th percentile — riskier than 78% 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-oldcore☕org.xwiki.platform:xwiki-platform-oldcore☕org.xwiki.platform:xwiki-platform-oldcore

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 is possible to bypass the existing security measures put in place to avoid open redirect by using a redirect such as //mydomain.com (i.e. omitting the http:). It was also possible to bypass it when using URL such as http:/mydomain.com.

Patches

The problem has been patched on XWiki 13.10.10, 14.4.4 and 14.8RC1.

Workarounds

The only way to workaround the bug is by providing a patched jar of xwiki-platform-oldcore containing the following changes: https://github.com/xwiki/xwiki-platform/commit/e4f7f68e93cb08c25632c126356d218abf192d1e#diff-c445f288d5d63424f56ef13f65514ab4e174a72e979b53b88197c2b7def267cf.

References

Jira ticket of the reported vulnerability: https://jira.xwiki.org/browse/XWIKI-19994
Jira ticket of the original mechanism put in place to prevent open redirect: https://jira.xwiki.org/browse/XWIKI-10309
Original advisory about open redirect: https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-jp55-vvmf-63mv

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-oldcore`	≥ 6.0-rc-1&&< 13.10.10	13.10.10`org.xwiki.platform:xwiki-platform-oldcore:13.10.10`
☕Maven	`org.xwiki.platform:xwiki-platform-oldcore`	≥ 14.0-rc-1&&< 14.4.4	14.4.4`org.xwiki.platform:xwiki-platform-oldcore:14.4.4`
☕Maven	`org.xwiki.platform:xwiki-platform-oldcore`	≥ 14.5&&< 14.8-rc-1	14.8-rc-1`org.xwiki.platform:xwiki-platform-oldcore:14.8-rc-1`

Affected Products

1 product · 4 configurations

Application

xwikixwiki

≥ 14.5 && ≤ 14.7

1 version

6.0

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

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-oldcore, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.xwiki.platform:xwiki-platform-oldcore to 13.10.10 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-29204 is resolved across your whole dependency graph.
Workarounds
Stop reflecting attacker-controlled destinations: resolve every redirect target against an allowlist of paths or hosts you own, prefer a server-side key over a full URL in the request, and reject absolute URLs entirely where the flow only ever needs a relative one.

How to detect CVE-2023-29204

A community-maintained Nuclei template exists for this CVE. You can scan for it directly:

nuclei -id cve-2023-29204 -u https://target

Template: XWiki - Open Redirect
Severity: medium
Impact: An attacker can redirect users to malicious websites, leading to phishing attacks or malware downloads.
Remediation: Implement proper input validation and sanitize user-controlled input to prevent open redirect vulnerabilities.

Template by ProjectDiscovery nuclei-templates (ritikchaddha), MIT licensed. View the full template. Scan only systems you are authorised to test.

Frequently Asked Questions

### Impact It is possible to bypass the existing security measures put in place to avoid open redirect by using a redirect such as `//mydomain.com` (i.e. omitting the `http:`). It was also possible to bypass it when using URL such as `http:/mydomain.com`. ### Patches The problem has been patched on XWiki 13.10.10, 14.4.4 and 14.8RC1. ### Workarounds The only way to workaround the bug is by providing a patched jar of xwiki-platform-oldcore containing the following changes: https://github.com/xwiki/xwiki-platform/commit/e4f7f68e93cb08c25632c126356d218abf192d1e#diff-c445f288d5d63424f56ef13f655