, save and then append the parameters ?viewer=displaycontent&sheet=&outputSyntax=plain. 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If this displays an alert, the installation is vulnerable. If a user with programming rights is tricked into visiting su"}},{"@type":"Question","name":"How severe is GHSA-fp7h-f9f5-x4q7?","acceptedAnswer":{"@type":"Answer","text":"GHSA-fp7h-f9f5-x4q7 has a CVSS score of 9/10, rated CRITICAL. Immediate patching is strongly recommended."}},{"@type":"Question","name":"Which packages are affected by GHSA-fp7h-f9f5-x4q7?","acceptedAnswer":{"@type":"Answer","text":"GHSA-fp7h-f9f5-x4q7 affects the following packages: org.xwiki.platform:xwiki-platform-web (Maven), 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."}},{"@type":"Question","name":"How do I fix GHSA-fp7h-f9f5-x4q7?","acceptedAnswer":{"@type":"Answer","text":"Update org.xwiki.platform:xwiki-platform-web to 14.4.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-fp7h-f9f5-x4q7 is resolved across your whole dependency graph."}},{"@type":"Question","name":"How do I detect GHSA-fp7h-f9f5-x4q7 in my Maven dependencies?","acceptedAnswer":{"@type":"Answer","text":"Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.xwiki.platform:xwiki-platform-web, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version."}},{"@type":"Question","name":"How do I mitigate GHSA-fp7h-f9f5-x4q7 if there is no patch (or I can't update yet)?","acceptedAnswer":{"@type":"Answer","text":"Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page."}},{"@type":"Question","name":"Is GHSA-fp7h-f9f5-x4q7 actively exploited in the wild?","acceptedAnswer":{"@type":"Answer","text":"Yes. There are 2 known exploit references for GHSA-fp7h-f9f5-x4q7, 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."}},{"@type":"Question","name":"What is the EPSS score for GHSA-fp7h-f9f5-x4q7?","acceptedAnswer":{"@type":"Answer","text":"GHSA-fp7h-f9f5-x4q7 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."}},{"@type":"Question","name":"What type of vulnerability is GHSA-fp7h-f9f5-x4q7?","acceptedAnswer":{"@type":"Answer","text":"GHSA-fp7h-f9f5-x4q7 is classified as Cross-site Scripting (XSS) (CWE-79). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure."}},{"@type":"Question","name":"When was GHSA-fp7h-f9f5-x4q7 published, and has it been updated?","acceptedAnswer":{"@type":"Answer","text":"GHSA-fp7h-f9f5-x4q7 was published on June 20, 2023 and was last updated on November 8, 2023. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting."}}]}
NIST deprecates RSA-2048 from 2030. Find every one of them before attackers do.
☕
☕ Maven
Not in CISA KEV
CRITICAL severity

XWiki vulnerable to stored cross-site scripting via any wiki document and the displaycontent/rendercontent templateGHSA-fp7h-f9f5-x4q7

CRITICALFix: xwiki/xwiki-platform@53e8292

GHSA-fp7h-f9f5-x4q7 is a critical-severity (CVSS 9) Cross-site Scripting (XSS) vulnerability in org.xwiki.platform:xwiki-platform-web. 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 — see the affected versions and patch details below.

Also known asCVE-2023-34464
Published
Updated
Affected
4 pkgs
Patched
4 / 4
Exploits
2 known
Exploitation data as of Nov 4, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • A successful exploit gives an attacker total control of the affected component, not partial access.
  • 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 GHSA-fp7h-f9f5-x4q7.

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
0.21%0.74%1.27%1.79%1.3%0.7%May 26Sep 26Nov 26

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

4 pkgs affected
☕org.xwiki.platform:xwiki-platform-web☕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

Any user who can edit a document in a wiki like the user profile can create a stored XSS attack by putting plain HTML code into that document and then tricking another user to visit that document with the displaycontent or rendercontent template and plain output syntax. For example, edit any document with the wiki editor and set the content to <script>alert(1)</script> , save and then append the parameters ?viewer=displaycontent&sheet=&outputSyntax=plain. If this displays an alert, the installation is vulnerable. If a user with programming rights is tricked into visiting such a URL, arbitrary actions be performed with this user's rights, impacting the confidentiality, integrity, and availability of the whole XWiki installation.

Patches

This has been patched in XWiki 14.4.8, 14.10.5 and 15.1RC1 by setting the content type of the response to plain text when the output syntax is not an HTML syntax.

Workarounds

The patch can be manually applied to the rendercontent.vm template in an existing installation to patch this vulnerability without upgrading.

References

Affected Packages

4 total 4 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.xwiki.platform:xwiki-platform-web≥ 2.2.1&&< 14.4.814.4.8org.xwiki.platform:xwiki-platform-web:14.4.8
☕Mavenorg.xwiki.platform:xwiki-platform-web-templatesall versions14.4.8org.xwiki.platform:xwiki-platform-web-templates:14.4.8
☕Mavenorg.xwiki.platform:xwiki-platform-web-templates≥ 14.5&&< 14.10.514.10.5org.xwiki.platform:xwiki-platform-web-templates:14.10.5
☕Mavenorg.xwiki.platform:xwiki-platform-web-templates≥ 15.0-rc-1&&< 15.1-rc-115.1-rc-1org.xwiki.platform:xwiki-platform-web-templates:15.1-rc-1

Affected Products

1 product · 3 configurations
Application
xwikixwiki
≥ 14.10 && < 14.10.5
1 version
15.0
Exploits & PoCs
2

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

XWiki Platform is a generic wiki platform offering runtime services for …

jira.xwiki.orgNVDJun 2023

Report on github.com

github.comNVDJun 2023

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.xwiki.platform:xwiki-platform-web, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.xwiki.platform:xwiki-platform-web to 14.4.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-fp7h-f9f5-x4q7 is resolved across your whole dependency graph.

  3. Workarounds

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

### Impact Any user who can edit a document in a wiki like the user profile can create a stored XSS attack by putting plain HTML code into that document and then tricking another user to visit that document with the `displaycontent` or `rendercontent` template and plain output syntax. For example, edit any document with the wiki editor and set the content to `<script>alert(1)</script>` , save and then append the parameters `?viewer=displaycontent&sheet=&outputSyntax=plain`. If this displays an alert, the installation is vulnerable. If a user with programming rights is tricked into visiting su
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XWiki vulnerable to stored cross-site scripting via any wiki…