CVE-2023-37913

CRITICALNVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.9 under NVD CVSS v3. EPSS exploit probability: 1.1%, top 39% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.9
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.9Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Starting in version 3.5-milestone-1 and prior to versions 14.10.8 and 15.3-rc-1, triggering the office converter with a specially crafted file name allows writing the attachment's content to an attacker-controlled location on the server as long as the Java process has write access to that location. In particular in the combination with attachment moving, a feature introduced in XWiki 14.0, this is easy to reproduce but it also possible to reproduce in versions as old as XWiki 3.5 by uploading the attachment through the REST API which doesn't remove / or \ from the filename. As the mime type of the attachment doesn't matter for the exploitation, this could e.g., be used to replace the jar-file of an extension which would allow executing arbitrary Java code and thus impact the confidentiality, integrity and availability of the XWiki installation. This vulnerability has been patched in XWiki 14.10.8 and 15.3RC1. There are no known workarounds apart from disabling the office converter.

CVSS v3
9.9
EG Score
9.9(medium)
EG Risk
—
EPSS
61.5%
KEV
Not listed

Published

October 25, 2023

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated Jul 21, 2026
Patch available. Sources: github_commit, github.
generic

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https://jira.xwiki.org/browse/XWIKI-20715
github Patch Available

Arbitrary server side file writing from account through office converter · Advisory · xwiki/xwiki-platform · GitHub

https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-vcvr-v426-3m3m
github_commit Patch Available

commit 45d182a4141f (xwiki/xwiki-platform)

Patch available: xwiki/xwiki-platform xwiki-platform-16.10.16 (contains commit 45d182a4141f)

https://github.com/xwiki/xwiki-platform/commit/45d182a4141ff22f3ff289cf71e4669bdc714544

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
org.xwiki.platform:xwiki-platform-office-importer—15.3-rc-1—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 52× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 107 total refreshes for this CVE.

  1. 2026-07-22 23:11 UTCEG score recompute
  2. 2026-07-22 14:06 UTCEPSS rescore
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Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-37913?
CVE-2023-37913 is a critical vulnerability published on October 25, 2023. XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Starting in version 3.5-milestone-1 and prior to versions 14.10.8 and 15.3-rc-1, triggering the office converter with a specially crafted file name allows writing the attachment's content to an…
When was CVE-2023-37913 disclosed?
CVE-2023-37913 was first published in the National Vulnerability Database on October 25, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-37913 actively exploited?
CVE-2023-37913 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 61.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-37913?
CVE-2023-37913 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2023-37913?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-37913, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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