Vendor
XenForo
25 known vulnerabilities.
Products
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High 7.2CVE-2026-74239 Public exploit
XenForo < 2.3.13 Path Traversal via Style Archive Importer on Windows
XenForo before 2.3.13 contains a path traversal vulnerability in the style archive importer on Windows deployments that allows authenticated non-super administrators with style permissions to write arbitrary files outside the intended extraction directory by …
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Medium 6.5CVE-2026-73321 Public exploit
XenForo < 2.3.13 Uncontrolled Recursion DoS via BBCode Parser
XenForo before 2.3.13 contains an uncontrolled recursion vulnerability in the BBCode parser that allows authenticated attackers to cause persistent denial of service by submitting a post with deeply nested BBCode tags. Attackers can craft a single malicious p…
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Medium 6.1CVE-2026-73320 Public exploit
XenForo < 2.3.13 Unauthenticated Information Disclosure via Unfurl Endpoint
XenForo before 2.3.13 contains an unauthenticated information disclosure vulnerability that allows unauthenticated attackers to retrieve private unfurl records by supplying predictable auto-increment primary key IDs to the unfurl endpoint. Attackers can enume…
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Medium 6.1CVE-2026-73319 Public exploit
XenForo < 2.3.13 XSS via Dynamic Redirect Handler
XenForo before 2.3.13 contains a cross-site scripting vulnerability in the dynamic redirect handler that allows unauthenticated attackers to execute arbitrary JavaScript in the board origin by crafting a malicious javascript: URI that bypasses host validation…
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Low 3.8CVE-2026-73318 Public exploit
XenForo < 2.3.13 Missing Authorization via force-agreement Controller
XenForo before 2.3.13 contains a missing authorization vulnerability in the force-agreement controller that allows any ACP administrator to access and submit force-agreement forms regardless of their assigned permissions. Attackers can bypass the option permi…
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Low 2.7CVE-2026-73317 Public exploit
XenForo < 2.3.13 Missing Authorization via ACP Cache-Rebuild Dispatcher
XenForo before 2.3.13 contains a missing authorization vulnerability in the ACP cache-rebuild dispatcher that allows limited administrators with only the rebuildCache permission to perform unauthorized approval queue actions by supplying an arbitrary job clas…
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High 7.5CVE-2026-73316 Public exploit
XenForo < 2.3.13 Payment Replay via PayPal REST Payment Provider
XenForo before 2.3.13 contains a payment replay vulnerability in the PayPal REST payment provider that allows attackers to process the same webhook payload multiple times by exploiting a missing duplicate transaction ID check. Attackers can replay a valid web…
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High 8.6CVE-2026-73315 Public exploit
XenForo < 2.3.13 SSRF via PayPal REST Webhook Handler
XenForo before 2.3.13 contains a server-side request forgery vulnerability in the PayPal REST webhook handler that allows unauthenticated attackers to cause the server to make outbound HTTP requests to arbitrary destinations by supplying a crafted certificate…
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High 7.5CVE-2026-73314 Public exploit
XenForo < 2.3.13 Signature Verification Bypass via PayPal REST Webhook
XenForo before 2.3.13 contains a signature verification logic error in the PayPal REST webhook handler that allows unauthenticated attackers to bypass payment signature validation by submitting a webhook request with an unsupported auth_algo header value. Whe…
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Medium 6.8CVE-2026-73313 Public exploit
XenForo < 2.3.13 MFA Bypass via Passkey TFA Provider
XenForo before 2.3.13 contains a multi-factor authentication bypass vulnerability in the passkey TFA provider that allows an authenticated attacker to complete login as another user by submitting their own registered passkey credential during the WebAuthn ass…
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High 7.4CVE-2026-73312 Public exploit
XenForo < 2.3.13 Refresh Token Replay via Expired Access Token
XenForo before 2.3.13 contains a refresh token replay vulnerability that allows attackers to reuse a refresh token multiple times by exploiting the failure to mark tokens as consumed when the parent access token has expired. Attackers can repeatedly submit th…
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High 7.4CVE-2026-73311 Public exploit
XenForo < 2.3.13 OAuth2 Authorization Code Reuse
XenForo before 2.3.13 contains an OAuth2 authorization code reuse vulnerability that allows attackers to obtain unauthorized token pairs by submitting a previously used authorization code. Attackers can exploit the failure to invalidate or mark authorization …
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Medium 5.9CVE-2026-73310 Public exploit
XenForo < 2.3.13 OAuth2 Authorization Code Token Theft via redirect_uri Bypass
XenForo before 2.3.13 contains an authorization flaw in the OAuth2 token endpoint that allows attackers controlling any allowlisted redirect URI to bypass redirect URI binding by submitting a different allowlisted URI than the one recorded at authorization ti…
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High 7.4CVE-2026-73309 Public exploit
XenForo < 2.3.13 Authentication Bypass via OAuth2 Token Endpoint
XenForo before 2.3.13 contains an authentication bypass vulnerability in the OAuth2 token endpoint that allows unauthenticated attackers to obtain valid token pairs by submitting empty values for client_secret and code_verifier parameters. Attackers can explo…