https://patchthecve.com/CVEs with upgrade or downgrade fix stepshttps://patchthecve.com/cve/CVE-2026-74239.htmlhttps://patchthecve.com/cve/CVE-2026-74239.htmlFri, 11 Sep 2026 20:30:32 +0000HIGH 7.2: 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 using backslash-based traversal sequenceshttps://patchthecve.com/cve/CVE-2026-73321.htmlhttps://patchthecve.com/cve/CVE-2026-73321.htmlFri, 11 Sep 2026 20:30:18 +0000MEDIUM 6.5: 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 post with sufficient nesting depth to excehttps://patchthecve.com/cve/CVE-2026-73320.htmlhttps://patchthecve.com/cve/CVE-2026-73320.htmlFri, 11 Sep 2026 20:30:06 +0000MEDIUM 6.1: 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 enumerate or predict result IDs and query the https://patchthecve.com/cve/CVE-2026-73319.htmlhttps://patchthecve.com/cve/CVE-2026-73319.htmlFri, 11 Sep 2026 20:26:33 +0000MEDIUM 6.1: 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. Attackers can embed the board hostname https://patchthecve.com/cve/CVE-2026-73318.htmlhttps://patchthecve.com/cve/CVE-2026-73318.htmlMon, 14 Sep 2026 20:16:50 +0000LOW 3.8: 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 permission declared in the navigation configurhttps://patchthecve.com/cve/CVE-2026-73317.htmlhttps://patchthecve.com/cve/CVE-2026-73317.htmlFri, 11 Sep 2026 20:26:12 +0000LOW 2.7: 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 class and actor user ID in the POST body. Atthttps://patchthecve.com/cve/CVE-2026-73316.htmlhttps://patchthecve.com/cve/CVE-2026-73316.htmlFri, 11 Sep 2026 20:31:36 +0000HIGH 7.5: 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 webhook payload to trigger duplicate paymenthttps://patchthecve.com/cve/CVE-2026-73315.htmlhttps://patchthecve.com/cve/CVE-2026-73315.htmlFri, 11 Sep 2026 20:31:26 +0000HIGH 8.6: 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 URL in webhook headers without scheme, hhttps://patchthecve.com/cve/CVE-2026-73314.htmlhttps://patchthecve.com/cve/CVE-2026-73314.htmlFri, 11 Sep 2026 20:31:16 +0000HIGH 7.5: 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. When the algorithm cannot be mapped to a suphttps://patchthecve.com/cve/CVE-2026-73313.htmlhttps://patchthecve.com/cve/CVE-2026-73313.htmlMon, 14 Sep 2026 20:16:50 +0000MEDIUM 6.8: 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 assertion step. The passkey verification pathttps://patchthecve.com/cve/CVE-2026-73312.htmlhttps://patchthecve.com/cve/CVE-2026-73312.htmlFri, 11 Sep 2026 20:30:57 +0000HIGH 7.4: 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 the same refresh token to generate additionhttps://patchthecve.com/cve/CVE-2026-73311.htmlhttps://patchthecve.com/cve/CVE-2026-73311.htmlFri, 11 Sep 2026 20:30:43 +0000HIGH 7.4: 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 codes as consumed after initial token isshttps://patchthecve.com/cve/CVE-2026-73310.htmlhttps://patchthecve.com/cve/CVE-2026-73310.htmlFri, 11 Sep 2026 20:36:03 +0000MEDIUM 5.9: 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 time. Attackers can exchange an interceptedhttps://patchthecve.com/cve/CVE-2026-73309.htmlhttps://patchthecve.com/cve/CVE-2026-73309.htmlFri, 11 Sep 2026 20:33:42 +0000HIGH 7.4: 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 exploit PHP truthy evaluation logic, which tre