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[webapps] Joomla JCE_2.9.15 - Remote Code Execution

A remote code execution proof of concept for Joomla Content Editor (JCE) 2.9.15 was published on Exploit-DB.

Exploit-DB added a webapps proof-of-concept for remote code execution affecting the Joomla Content Editor (JCE) component version 2.9.15. JCE is a widely deployed editor extension used on Joomla websites. The entry provides no CVE id and no evidence of in-the-wild exploitation.

Exploit-DB · Aug 17, 2026Exploit / PoC1

[20260807] - Core - MFA Authentication Bypass

Joomla fixed CVE-2026-73337, an MFA authentication bypass caused by insufficient state checks, affecting Joomla CMS 4.0.0-5.4.7 and 6.0.0-6.1.2.

Joomla security advisory 20260807 describes CVE-2026-73337, an authentication bypass in Joomla CMS multi-factor authentication. Insufficient state checks create a vector that allows 2FA checks to be bypassed; the vendor rates the impact as high with moderate probability. Affected versions are 4.0.0-5.4.7 and 6.0.0-6.1.2; fixes ship in 5.4.8 and 6.1.3. The issue was reported by bloman and Matej Rada on 2026-07-25.

Joomla Security Centre · Aug 17, 2026AdvisoryCVE-2026-73337

[20260810] - Core - Unrestricted uploads of SHTML files

Joomla fixed CVE-2026-73373, an unrestricted SHTML file upload flaw affecting CMS 1.0.0-5.4.7 and 6.0.0-6.1.2 that can enable code execution.

Joomla published security advisory 20260810 for CVE-2026-73373, an unrestricted upload of files with dangerous type in Joomla CMS. The default dangerous-file list omitted SHTML files, which could lead to code execution on servers that execute SHTML. Affected versions are 1.0.0-5.4.7 and 6.0.0-6.1.2; fixes ship in 5.4.8 and 6.1.3. The issue was reported by Valentin Lobstein (Chocapikk) on 2026-07-29.

Joomla Security Centre · Aug 17, 2026AdvisoryCVE-2026-73373

[20260806] - Core - XSS through schema.org outputs

Joomla fixed CVE-2026-73336, an XSS in schema.org markup outputs caused by improper escaping, affecting CMS 5.1.0-5.4.7 and 6.0.0-6.1.2.

Joomla security advisory 20260806 describes CVE-2026-73336, a cross-site scripting issue in schema.org markup outputs. Improper escaping flags create an XSS vector in schema.org output; the vendor rates impact and severity as moderate with low probability. Affected versions are 5.1.0-5.4.7 and 6.0.0-6.1.2; fixes ship in 5.4.8 and 6.1.3. The issue was reported by Amin Isayev and Geo (GitHub.com/geo-chen) on 2026-07-21.

Joomla Security Centre · Aug 17, 2026AdvisoryCVE-2026-73336

[20260805] - Core - Improper ACL checks for category webservice endpoints

Joomla fixes CVE-2026-72532, an improper ACL check letting unauthorized users create categories via webservice endpoints, in CMS 5.4.8/6.1.3.

Joomla disclosed an incorrect access control flaw (CVE-2026-72532) in category webservice endpoints, allowing unauthorized users to create categories for inaccessible components. It affects Joomla CMS 4.0.0-5.4.7 and 6.0.0-6.1.2 and is rated moderate impact and severity with low probability. The fix ships in Joomla 5.4.8 and 6.1.3 on 2026-08-18; it was reported by Amin Isayev and Geo.

Joomla Security Centre · Aug 17, 2026AdvisoryCVE-2026-72532

[20260804] - Core - Improper ACL checks for custom fields webservice endpoints

Joomla patches CVE-2026-72531, an improper ACL check allowing unauthorized custom-field creation via webservice endpoints, in CMS 5.4.8/6.1.3.

Joomla disclosed an incorrect access control issue (CVE-2026-72531) letting unauthorized users create custom fields for inaccessible components through webservice endpoints. It affects Joomla CMS 4.0.0-5.4.7 and 6.0.0-6.1.2, rated moderate impact and severity with low probability. Fixed in Joomla 5.4.8 and 6.1.3; reported by ebadfd on 2026-07-06.

Joomla Security Centre · Aug 17, 2026AdvisoryCVE-2026-72531

[20260803] - Core - Inconsistent ACL checks for mutating webservice endpoints

Joomla fixes CVE-2026-71574, inconsistent ACL checks letting unauthorized users mutate data via webservice APIs, in CMS 5.4.8/6.1.3.

Joomla disclosed an inconsistent access control flaw (CVE-2026-71574) in mutating webservice endpoints, where unauthorized users could perform mutations restricted in the backend UI; impact is rated high. It affects Joomla CMS 4.0.0-5.4.7 and 6.0.0-6.1.2, with moderate severity and low probability. The fix ships in Joomla 5.4.8 and 6.1.3 on 2026-08-18.

Joomla Security Centre · Aug 17, 2026AdvisoryCVE-2026-71574

[20260802] - Core - Improper CORS origin validation

Joomla patches CVE-2026-71573, improper CORS origin validation in CMS requests, in versions 5.4.8 and 6.1.3.

Joomla disclosed improper CORS origin validation (CVE-2026-71573), where configured CORS origins were not properly validated on CORS requests, rated moderate impact/severity and moderate probability. It affects Joomla CMS 4.0.0-5.4.7 and 6.0.0-6.1.2. Fixed in Joomla 5.4.8 and 6.1.3; reported on 2026-07-09 by Agamemnon Fakas and caveeroo.

Joomla Security Centre · Aug 17, 2026AdvisoryCVE-2026-71573

Inside Knight Office, a New M365 AiTM Phishing Kit

Huntress details Knight Office, a new AiTM phishing kit stealing Microsoft 365 session tokens and registering attacker-controlled devices.

Huntress investigated an August 18, 2026 adversary-in-the-middle attack using the Knight Office phishing kit, which captured Microsoft 365 session tokens via a DocuSign-style lure routed through a Monday.com tracking link and a compromised Joomla site. After token capture, the actor enrolled an unauthorized host in Microsoft Entra ID and bound a Windows Hello for Business key credential to the account. The kit's operator console, found at IP 104.37.188.94, is built on Python Flask and hosts at least 25 .vu phishing domains. Telemetry links the kit to at least nine token-replay logins in two weeks and roughly 700 reported lure emails since April.

Huntress · 14d agoPhishing & fraud in the wild1

$20 per zero-day is already the WordPress plugin reality

TrendAI and CHT Security used an AI pipeline to find over 300 verified WordPress plugin zero-days at roughly $20 per vulnerability.

A pipeline built in three days by TrendAI and CHT Security, presented at Ekoparty Miami, paired AI-driven static analysis with automated Docker provisioning and Chrome DevTools MCP dynamic verification to surface more than 300 critical zero-days in WordPress plugins within 72 hours. The run consumed about 222 million tokens across 95 tasks, averaging roughly $20 per verified vulnerability, with findings including pre-auth RCE, SQL injection, privilege escalation, SSRF, and an AI-assembled downgrade attack chain. Dynamic verification eliminated over 80% of false positives, but manual review at 30-60 minutes per finding remains the bottleneck, straining ZDI and NIST triage backlogs.

Help Net Security · 23d agoResearch1