Is CVE-2023-36477 in the CISA KEV catalog?

No. CVE-2023-36477 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-36477?

CVE-2023-36477 has a CVSS v3 base score of 9.0 (CRITICAL).

What is the EPSS score for CVE-2023-36477?

CVE-2023-36477 has an EPSS score of 0.90% (55th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-36477?

Upgrade ckeditor integration to 1.64.9 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2023-36477

CRITICAL

9.0

CVSS v3

NVD

Description

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user with edit rights can edit all pages in the `CKEditor' space. This makes it possible to perform a variety of harmful actions, such as removing technical documents, leading to loss of service and editing the javascript configuration of CKEditor, leading to persistent XSS. This issue has been patched in XWiki 14.10.6 and XWiki 15.1. This issue has been patched on the CKEditor Integration extension 1.64.9 for XWiki version older than 14.6RC1. Users are advised to upgrade. Users unable to upgrade may manually address the issue by restricting the `edit` and `delete` rights to a trusted user or group (e.g. the `XWiki.XWikiAdminGroup` group), implicitly disabling those rights for all other users. See commit `9d9d86179` for details.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

ckeditor integrationNVD

Affected:>= 1.9, < 1.64.9Fixed in:1.64.9CVE-2023-36477derived from NVD

xwikiNVD

Affected:>= 14.6, < 14.10.6Fixed in:14.10.6CVE-2023-36477derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionRequired

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Exploit Intelligence

0.90%probability of exploitation in 30 days

55thpercentile

Moderate risk: more likely to be exploited than 55% of all known CVEs.

References

Patch2

Exploit2

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.