Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessIdentify WordPress site running Koji ≤2.2.1
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DeliveryEnumerate theme-registered endpoints or AJAX actions
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ExploitSend unauthenticated HTTP request to restricted route
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ExecutionBypass missing authorization check
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ImpactRetrieve confidential page or data content
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization checks on every request
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. |
| Exploitation Conditions | The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms that no authentication, no elevated privileges, no user interaction, and no special network position are required. The theme must be installed and active on a WordPress site. Exploitation is only meaningful when the affected site relies on Koji's theme-level access control logic to restrict access to sensitive content or functionality - sites where no content is gated through the theme's authorization mechanism would not expose sensitive data even if the flaw is triggered. The specific vulnerable endpoint (REST route, AJAX action, or template path) is not disclosed in the available data, so an attacker would need to enumerate or review theme code to identify the unprotected path. No particular server configuration, plugin combination, or WordPress version constraint is noted as a prerequisite. |
| Impact | The CVSS score of 7.5 is technically justified by the fully unauthenticated network vector (AV:N/AC:L/PR:N/UI:N) and high confidentiality impact; these metrics are internally consistent with a missing authorization check on a data-returning endpoint. However, several signals moderate real-world priority: no KEV listing, no public exploit code identified at time of analysis, and a limited deployment footprint (a niche independent-developer WordPress theme rather than a widely-deployed platform component). EPSS probability data was not provided in the input, so probabilistic exploitation likelihood cannot be assessed quantitatively. The non-changed scope (S:U) and absence of integrity or availability impact mean successful exploitation yields data disclosure, not system compromise. The principal risk is for WordPress site operators who use Koji as their active theme and rely on its access control logic to protect member-only or private content - those deployments face meaningful confidentiality exposure even without a known public exploit, given that the attack complexity is low once an attacker identifies the vulnerable endpoint. |
| Exploit ScenarioDerived | An unauthenticated attacker identifies a WordPress site running Koji version 2.2.1 or earlier, then sends a direct HTTP request to a restricted endpoint - such as a protected page URL, REST route, or AJAX handler - without supplying authentication credentials. The theme's missing authorization check fails to validate the request, and the server returns the protected content. No public proof-of-concept has been identified at time of analysis, but low attack complexity means exploitation is achievable with standard HTTP tooling once the specific unprotected endpoint is enumerated. |
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Alert meAnalysisAIv1 – Aug 20, 2026
Broken access control in the Koji WordPress theme (versions 2.2.1 and earlier) allows unauthenticated remote attackers to access content or functionality that should be restricted, resulting in high confidentiality impact. The CVSS vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) confirms exploitation requires no credentials, no special configuration, and no user interaction. No public exploit code has been identified at time of analysis and the vulnerability does not appear in CISA's KEV catalog, though the Patchstack disclosure confirms the flaw exists in the released theme.
RemediationAI
The primary remediation is to update the Koji theme to a version beyond 2.2.1 once the theme developer (Anders Norén) releases a patched build. No exact fixed version is confirmed in the available input data - administrators should monitor the Patchstack advisory at https://patchstack.com/database/wordpress/theme/koji/vulnerability/wordpress-koji-theme-2-2-1-broken-access-control-vulnerability and the theme's official repository for a patched release. As a compensating control pending a fix, administrators should audit which content is protected solely by theme-level access control logic and migrate that protection to a dedicated membership or access-control plugin that enforces capability checks independently of the theme. Alternatively, switching to a different active theme eliminates the vulnerable code paths entirely, though this has significant visual and functional side effects. A WAF rule blocking unauthenticated requests to suspected vulnerable endpoints is a partial mitigation, but requires first identifying the specific routes through vendor communication or code review.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Koji is a WordPress theme authored by Anders Norén, identified by CPE cpe:2.3:a:anders_norén:koji:*:*:*:*:*:*:*:*. The root cause is CWE-862 (Missing Authorization), a class of flaw where code paths - typically REST API endpoints, AJAX handlers registered via wp_ajax_nopriv_, or template-level logic - execute sensitive operations or return protected data without first verifying whether the requesting party holds the required WordPress capability. In this theme context, the vulnerability bypasses the expected access gate entirely rather than using a weak or bypassable check, hence the 'unauthenticated broken access control' classification from Patchstack. The confidentiality-only CVSS impact (C:H/I:N/A:N) suggests the exposed functionality returns restricted data rather than permitting write or destructive operations.
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Network-reachable with no authentication or user interaction; confidentiality-only impact consistent with unauthorized data read rather than write or destructive operation.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
DescriptionCVE.org
Unauthenticated Broken Access Control in Koji <= 2.2.1 versions.
Executive ViewAI
The Koji WordPress theme (versions 2.2.1 and earlier) contains a broken access control vulnerability permitting unauthenticated remote attackers to access restricted content and functionality over the network without user interaction. Organizations using this theme risk unauthorized disclosure of sensitive business information, user data, or protected content to any remote attacker. Immediate identification and mitigation of affected WordPress installations is required to prevent data exposure.
No vendor-released patch identified at time of analysis. Interim mitigations: (1) immediately deactivate the Koji theme and deploy an alternative WordPress theme; (2) restrict network access to affected WordPress installations using firewall rules or WAF policies to allow only trusted IP ranges; (3) implement additional application-level access controls through WordPress security plugins or custom restrictions on sensitive content; (4) enable comprehensive access logging and monitoring for the affected installations; (5) conduct forensic log review covering the vulnerability window to detect any unauthorized access attempts.
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Koji version 1.12, 1.13, 1.14 and 1.15 contain an incorrect access control vulnerability resulting in arbitrary filesyst
Jenkins Koji Plugin stores credentials unencrypted in its global configuration file on the Jenkins master where they can
Koji 1.13.0 does not properly validate SCM paths, allowing an attacker to work around blacklisted paths for build submis
Koji through 1.18.0 allows remote Directory Traversal, with resultant Privilege Escalation. Rated medium severity (CVSS
Jenkins Koji Plugin disables SSL/TLS and hostname verification globally for the Jenkins master JVM. Rated medium severit
EUVD-2026-63320
GHSA-wh6c-f85q-gq2p
NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB