Exploit-DB entry 52681 (dated 3 September 2026) documents a public remote-code-execution exploit for CVE-2025-57819 in FreePBX Endpoint Manager. The flaw is an unauthenticated SQL injection in the brand parameter of /admin/ajax.php that can insert a malicious cron_jobs row and yield a reverse shell as the web user. Affected branches per the exploit write-up: FreePBX 15.x before 15.0.66, 16.x before 16.0.89, and 17.x before 17.0.3 (title tested against 17.0.2). The write-up cites CVSS 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), CWE-89 and CWE-288, NVD, and GitHub advisory GHSA-m42g-xg4c-5f3h. Upgrade Endpoint Manager / FreePBX to the fixed releases; restrict admin/ajax exposure; hunt for unexpected cron_jobs entries. Correction (25 Oct 2026): FreePBX's own advisory (GHSA-m42g-xg4c-5f3h, 28 August 2025) and the CVE record score CVE-2025-57819 at 10.0 Critical under CVSS 4.0; 9.8 is the score cited in the Exploit-DB write-up. FreePBX also says that starting on or before 21 August 2025 an unauthorised user began accessing multiple FreePBX 16 and 17 systems connected directly to the internet by exploiting this flaw, and CISA added it to its Known Exploited Vulnerabilities catalog on 29 August 2025; the card had described only a public exploit. (source: FreePBX GHSA-m42g-xg4c-5f3h; CISA KEV catalog)
The Hacker News (3 September 2026) reports researcher Chaotic Eclipse published FalconFlank, a public local privilege-escalation exploit demo that abuses CrowdStrike Falcon Sensor’s Office malicious-macros remediation path on fully updated Windows 11 25H2 and Windows Server 2025. The researcher said Falcon may already detect the demo code and that lab checks may need exclusions or obfuscation. A CrowdStrike spokesperson told THN the company is investigating, advised customers to disable the Microsoft Office File Suspicious Macro Removal Windows policy setting, said customers remain protected through Cloud Anti-malware for Microsoft Office Files, and pointed operators to the FalconFlank Tech Alert in the CrowdStrike support portal. Review the portal alert, apply CrowdStrike guidance, and treat the public exploit code as high-signal for endpoint labs.
BleepingComputer (3 September 2026) reports Hewlett Packard Enterprise patched a critical buffer-overflow remote code execution issue in ArubaOS-CX, tracked as CVE-2026-73749: an unauthenticated remote attacker can send crafted packets to an affected daemon and execute code with elevated privileges. HPE security bulletin hpesbnw05134en_us lists fixed builds by branch: 10.18.0001 → 10.18.1002+; 10.17.1021 and earlier → 10.17.1030+; 10.16.1051 and earlier → 10.16.1060+; 10.13.1180 and earlier → 10.13.1190+; 10.10.1180 and earlier → 10.10.1181+ (10.10.1181 is End of Maintenance and receives only critical internal fixes). The same bulletin covers about 23 further issues; Bleeping citing HPE places several authenticated management flaws (including CVE-2026-73750/73751/73752 and related) in the high range around 8.1–8.8. WA SOC advisory 20260909002 (9 September 2026, TLP:CLEAR) covers the same CVE-2026-73749 RCE (CVSS 9.8 Critical), lists the same fixed branches, and states it has not received reports of exploitation on Western Australian Government networks at the time of writing. Upgrade AOS-CX switches to the fixed release for your branch; restrict management-plane exposure until patched.
BleepingComputer (3 September 2026) and Wordfence (via The Hacker News, 4 September 2026) report active exploitation of CVE-2026-32475 in Elementor Pro for WordPress. Faulty validation of file-upload arrays in Elementor Pro forms (versions 4.2.1 and earlier) lets an attacker submit an empty first array element and a malicious PHP file as the second, so later files skip validation. The payload lands under /wp-content/uploads/elementor/forms/ and can be fetched to run commands. Elementor shipped 4.2.2 on 19 August 2026. Wordfence says it blocked about 190,000 exploit attempts against this CVE (and over 250,000 against Super Forms CVE-2026-14894 in the same wave — that CVE has its own desk card). Exploitation needs a published Elementor Pro Form widget with at least one File Upload field. Patchstack disclosed the issue earlier. Upgrade Elementor Pro to 4.2.2 or later; review uploads under elementor/forms for unexpected PHP; keep WAF rules current.
Marimo GHSA-2679-6mx9-h9xc / NVD: CVE-2026-39987 is a pre-authentication RCE in the reactive Python notebook server. The /terminal/ws WebSocket lacks auth, giving an unauthenticated attacker a full PTY shell. NVD: versions prior to 0.23.0 affected; CVSS 3.1 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H); CVSS 4.0 9.3 also published. Exploit-DB 52673 (2 Sep 2026) shipped a public PoC (cited ≤0.20.4). UPDATE 15 September 2026 (Sysdig Threat Research; THN wire): Sysdig observed a skilled human operator exploit this CVE within hours of disclosure, pivoting from Marimo to AWS Secrets Manager then an SSH bastion in eight seconds with a hand-rolled Python toolkit (850+ interactive commands over ~9 hours; source IP 172.236.12.17 on first WS connect). Upgrade to 0.23.0+; never expose Marimo terminal WebSockets to the internet. Primary: Marimo GHSA / NVD; research: Sysdig; wire: THN. UPDATE (26 Oct 2026): CISA added CVE-2026-39987 to its Known Exploited Vulnerabilities catalog on 23 April 2026, with a 7 May due date for US federal agencies. Marimo's GitHub advisory rates it Critical and lists 0.23.0 as the patched version. (source: CISA KEV catalog; Marimo GitHub advisory)
Exploit-DB entry 52676 (dated 2 September 2026) packages a Metasploit module for CVE-2026-29053: crafted Ghost CMS themes can execute arbitrary code on the host. The module lists affected releases from 0.7.2 through 6.19.0 and notes that for versions 5.105.0–5.130.5 and 6.0.0–6.10.3 it can also leverage a related 2FA bypass (CVE-2026-22594). Endor Labs write-up GHSA-cgc2-rcrh-qr5x is cited as the research reference. Upgrade Ghost past the fixed releases; restrict who can upload themes; review installed themes for unexpected Handlebars templates.
Cisco published a batch of security advisories on 2 September 2026. Two medium-severity flaws in Cisco Secure Email S/MIME decryption, CVE-2026-20354 and CVE-2026-20355 (Cisco CVSS 5.9 each), are due to insufficient validation of message integrity: Cisco says an attacker using a machine-in-the-middle technique to intercept and modify traffic between email gateways could obtain plaintext content from the encrypted communication. Cisco says that at the time of publication the flaws affected Secure Email devices running AsyncOS 16.5.0 or earlier with S/MIME configured for communication between email gateways, that a public announcement of the flaws is available, and that it is not aware of any malicious use. In the same publication, Cisco's notice lists the IOS XR Software Security Hardening Release for September 2026 (CVE-2026-20274 to CVE-2026-20280; Critical, CVSS 9.8), a Nexus 9000 Series Switches Silicon One remote code execution flaw (CVE-2026-20212; Critical, CVSS 9.8) and a high-severity SIP denial-of-service flaw in Desk Phone 9800, IP Phone 7800 and 8800 and Video Phone 8875 (CVE-2026-20281; CVSS 7.5), and recommends upgrading to the fixed software indicated in each advisory. Primary: Cisco Security Advisory cisco-sa-esa-smime-disc-dzw4rEdY and Cisco's 2 Sep publication notice. Apply available IOS XR, Nexus and phone fixes; for Secure Email, Cisco says there are no workarounds and refers customers to bug IDs CSCwu28362 and CSCwu28364 for fixed releases. Correction (25 Oct 2026): Cisco's advisory (version 1.1, updated 8 September) says there are no workarounds for CVE-2026-20354 and CVE-2026-20355 and refers customers to bug IDs CSCwu28362 and CSCwu28364 for fixed releases; the earlier advice to apply workarounds from the advisory was wrong and has been removed. (source: Cisco Security Advisory cisco-sa-esa-smime-disc-dzw4rEdY) Correction (26 Oct 2026): CVSS scores and fix status are now credited to Cisco's advisory and publication notice. An unlinked SecurityWeek summary and wording that came from it (the flaws described as unpatched, 'no fix at disclosure', and descriptions of the IOS XR flaw classes and the Nexus attack path) have been removed. (source: Cisco)
On 2 September 2026 CISA published a Rockwell Automation ICS advisory batch (ICSA-26-244-01 through ICSA-26-244-06) alongside Rockwell Trust Center advisories. ICSA-26-244-01 covers RSLinx Classic denial-of-service issues CVE-2026-9621, CVE-2026-9622, CVE-2026-9624 and CVE-2026-9625 (critical/high per SecurityWeek's read of the vendor set; exploitation can crash the RSLinx Classic service until restart). ICSA-26-244-03 covers Logix Platform CVE-2026-9637 (improper restriction of operations within memory buffer) with vendor CVSS 3.x 7.5 on ControlLogix 5580 and CompactLogix 5380 version ranges listed in the CISA advisory; CISA states it is not aware of public exploitation. SecurityWeek also notes FactoryTalk Historian RCE, FactoryTalk Activation Manager privilege issues, ArmorStart XSS/DoS, and ControlFLASH arbitrary code execution among the same Tuesday drop. Apply Rockwell patches or workarounds from the Trust Center; segment OT management hosts.
Google's Stable Channel Update for Desktop (2 September 2026) promotes Chrome to 152.0.7977.75/.76 on Windows and Mac and 152.0.7977.75 on Linux with 26 security fixes. Critical: CVE-2026-84353 use-after-free in Shared Tab Groups and CVE-2026-84352 use-after-free in WebGL (both Google-reported). Nine High issues include FileSystem incorrect authorization (CVE-2026-84354), Skia information leak (CVE-2026-84359), Omnibox input validation (CVE-2026-84357), and several use-after-free / buffer issues in Proxy, Browser, Dawn, GPU and V8. Distinct from desk card cve-2026-79290 (earlier Chrome 152.0.7977.64/.65 Critical Aura/ANGLE set, 25 Aug). SecurityWeek says Mozilla shipped Firefox 155 the same day with patches for 29 defects including 13 high-severity use-after-free, sandbox escape, and memory-corruption issues. Update Chrome and Firefox promptly; this desk does not invent CVSS for Google's Critical labels.
Chrome Stable Channel Update for Desktop (2 Sep 2026)
BerriAI LiteLLM GHSA-7488-6r32-c95q (CVE-2026-59822) is High: the MCP Streamable HTTP auth path could let an unauthenticated attacker establish an MCP session with an arbitrary Bearer token when OAuth2 passthrough fallback replaced failed key validation with an empty UserAPIKeyAuth object, exposing configured MCP tools and connected services. Affected versions before 1.84.0; fixed in 1.84.0. GHSA publishes CVSS 4.0 vector AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N; CISA KEV (2 Sep 2026) and The Hacker News cite 8.8. CISA added the CVE to KEV on evidence of active exploitation. Upgrade to 1.84.0+ or disable/block /mcp/ until patched.
Kestra GHSA-5vc5-wxxq-3fjx (CVE-2026-49869) is Critical: AuthenticationFilter whitelists any path whose last segment is configs via endsWith("/configs"), so unauthenticated callers can hit flow/execution APIs and, with default script plugins, achieve remote code execution as root in the worker container. GHSA CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H (10.0). Affected through 1.3.20; patched in 1.0.45 and 1.3.21. CISA added it to KEV on 2 September 2026. Upgrade Kestra OSS immediately; do not expose the webserver to untrusted networks until patched.
Kludex Starlette GHSA-86qp-5c8j-p5mr (CVE-2026-48710) is an HTTP request/response path confusion: affected builds rebuild request.url from an unvalidated Host header, so a malformed Host can make request.url.path differ from the path the router actually dispatched. Middleware that authorises on request.url.path can be bypassed. GHSA rates Moderate; CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N (6.5). Affected through 1.0.0; patched in 1.0.1. CISA added it to the KEV catalog on 2 September 2026 based on evidence of active exploitation. Upgrade Starlette (and FastAPI stacks that pin it) to 1.0.1 or later; ensure front-end proxies reject malformed Host headers.
