What is the CVSS score of CVE-2023-35166?

CVE-2023-35166 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 63.1%.

Is there a public PoC exploit available for CVE-2023-35166?

Yes, a public proof-of-concept exploit is available for CVE-2023-35166. Prioritise patching immediately. EPSS: 63.1%.

Is there a patch available for CVE-2023-35166?

Yes, a patch is available for CVE-2023-35166. Update the affected software to the latest version immediately.

Xwiki CVE-2023-35166

HIGH

Incorrect Authorization (CWE-863)

2023-06-20 security-advisories@github.com

Authentication Bypass Xwiki

8.8

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-863 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V8 - Authorization Authorization logic validation MITRE ATT&CK 1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 8.8 (HIGH). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. Public proof-of-concept exploit code is available.
Exploit ScenarioDerived	A remote attacker could bypass authorization checks to access restricted resources by sending crafted requests to the affected application.

This Week Schedule remediation this week. Why: HIGH severity + EPSS > 10%.

Patch available 63.1% exploitation probability (EPSS)

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AnalysisAI

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Review and test authorization logic, implement consistent access control checks, use centralized authorization framework.

Affected Packages

maven org.xwiki.platform:xwiki-platform-help-ui fix: 14.10.5, 15.1-rc-1

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in maven

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Incorrect Authorization (CWE-863), which allows attackers to bypass authorization checks to access restricted resources. XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. It's possible to execute any wiki content with the right of the TipsPanel author by creating a tip UI extension. This has been patched in XWiki 15.1-rc-1 and 14.10.5. Affected products include: Xwiki.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.8 HIGH

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. It's possible to execute any wiki content with the right of the TipsPanel author by creating a tip UI extension. This has been patched in XWiki 15.1-rc-1 and 14.10.5.

Threat Intelligence Overview

EPSS Score

63.1%

Top 1% exploitable

Exploit

POC

Public exploit code exists

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC Yes

EPSS 63.1%

Patch available Yes

Active threat Yes

Deciding rule

HIGH severity + EPSS > 10%

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

Medium

Priority Score

127

Low Medium High Critical

KEV: 0

EPSS: +63

CVSS: +44

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)NVD

cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*

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References

Advisories & patches

PATCH https://github.com/xwiki/xwiki-platform/commit/98208c5bb1e8cdf3ff1ac35d8b3d1cb3c28b3263#diff-4e3467d2ef3871a68b2f910e67cf84531751b32e0126321be83c0f1ed5d90b29L176-R178 PATCH https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-h7cw-44vp-jq7h

Search Externally

GitHub PoC

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