CISA has added a LiteSpeed cPanel plugin flaw to its known-exploited list and given federal agencies until June 18 to patch. The bug (CVE-2026-54420, rated 8.5) lets a user who already has FTP or web-shell access on a shared hosting server escalate to root by abusing how the plugin follows symbolic links, on servers running CloudLinux or CageFS. On multi-tenant hosting that turns one compromised account into full control of the whole server and every site on it. Namecheap reported it after spotting suspicious activity, and LiteSpeed flagged active exploitation in early June. The fix is LiteSpeed WHM Plugin 5.3.2.1 with cPanel plugin 2.4.8.
Threat-intelligence firm Defused reports that attackers are now exploiting three critical flaws in Fortinet's FortiSandbox, the appliance other Fortinet products rely on to judge whether files are malicious. Two (CVE-2026-39813, a JRPC API path traversal that bypasses authentication, and CVE-2026-39808, an unauthenticated command-injection that runs code as root) were patched in April; the third (CVE-2026-25089) only last week. All are unauthenticated and rated critical. Compromising a sandbox is especially dangerous because attackers can make it wave real malware through as clean. Notably, the exploit for one flaw appears to have been generated with AI and is likely faulty, yet attackers are trying it anyway.
Palo Alto's Unit 42 disclosed a flaw, nicknamed Pickle in the Middle, in Google Cloud's Vertex AI SDK for Python that let an attacker with no access to a victim's project hijack their machine-learning model uploads and run code across tenant boundaries. When a model was uploaded without a custom staging bucket, the SDK generated a predictable storage bucket name from the project ID and region and failed to verify ownership, so an attacker could pre-create that bucket, receive the victim's model, and swap in a malicious one that executes on deployment. Google fully fixed it in SDK version 1.148.0 in April; Unit 42 saw no exploitation in the wild.
Cisco has patched a flaw in Catalyst SD-WAN Manager (formerly vManage), the console used to manage thousands of SD-WAN devices, that attackers were already exploiting as a zero-day to gain root. The bug (CVE-2026-20262) stems from weak validation of file uploads in the web interface, letting an authenticated low-privilege remote attacker create or overwrite any file on the system by sending crafted HTTP requests, and from there run commands as root. It affects every deployment type, including on-premises, Cisco-managed cloud, and the FedRAMP government edition, regardless of configuration. It is the latest in a run of exploited Cisco SD-WAN Manager zero-days this year.
A critical flaw in SimpleHelp, a remote support and management tool used by IT teams and managed service providers, lets an unauthenticated attacker create a privileged technician account and skip multi-factor authentication. The bug (CVE-2026-48558) only affects servers configured to use OpenID Connect (OIDC) single sign-on, including Azure AD, and stems from how the server validates identity assertions from the login provider. A rogue technician can then remote into managed machines and run scripts, giving attackers a foothold across every connected endpoint. Researchers found roughly 14,000 SimpleHelp servers exposed online, with about 7 percent using the vulnerable OIDC setup. The flaw affects versions 5.5.15 and earlier.
Researchers at Varonis disclosed SearchLeak, a flaw chain in Microsoft 365 Copilot Enterprise Search that let a single click on a legitimate microsoft.com link silently pull a victim's emails, calendar, and indexed files, including security and MFA codes, with no password or further interaction. It worked by smuggling instructions into the search URL's query parameter, which Copilot obeyed as commands, then exfiltrating the data through a Bing image request that bypassed content protections. Because the link used a real Microsoft domain, anti-phishing filters were unlikely to flag it. Microsoft assigned CVE-2026-42824, rated it critical, and fixed it on its backend, so no customer action is required.
Splunk has patched a critical flaw in Splunk Enterprise that lets an unauthenticated attacker run code on the server, a serious risk given Splunk often sits at the heart of a company's security monitoring. The bug (CVE-2026-20253, rated 9.8) is in the PostgreSQL sidecar service added in Splunk 10, whose internal API has no authentication yet is reachable through the main web app's proxy. An attacker can write or overwrite files on the host and chain that into remote code execution. The sidecar is off by default on on-premises Windows but enabled out of the box on Splunk Enterprise running in AWS. Splunk Cloud is not affected.
A critical flaw in phpBB, the open-source forum software running on thousands of sites, lets an unauthenticated attacker obtain a valid login session as any user, including an administrator, with a single HTTP request. The bug (CVE-2026-48611, rated 9.4) works in the default configuration and traces back to code from 2014. An admin session gives full read, write, and delete access to the forum and, on the latest branch, opens a path to remote code execution and full server takeover. A second, lower-severity flaw affecting only OAuth-configured installs was also fixed. phpBB released version 3.3.17 to patch both.
Check Point has disclosed three now-patched flaws in LangGraph, the popular LangChain framework for building AI agents, that can be chained for remote code execution on self-hosted servers. The chain combines an SQL injection (CVE-2025-67644) with an unsafe msgpack deserialization bug (CVE-2026-28277): an attacker who can reach the agent's stored-state endpoint plants a malicious checkpoint that runs code when loaded. A compromised LangGraph server exposes everything the agent can touch, including model API keys, customer data, and internal network access. It is only exploitable in self-hosted deployments using the SQLite or Redis checkpointer; LangChain's managed LangSmith platform is not affected.
The ShinyHunters data-theft wave against Oracle PeopleSoft, covered yesterday, now has a confirmed root cause: a zero-day. Oracle has issued an out-of-band emergency mitigation for CVE-2026-35273, a critical flaw (rated 9.8) in PeopleSoft PeopleTools that lets an unauthenticated attacker run code on the server over HTTP, with no login required. Google's Mandiant says the bug was exploited from May 27 to June 9, before any advisory existed, and notified more than 100 affected organizations, 68 percent of them universities. The exposed component is the Environment Management Hub. Affected versions are PeopleTools 8.61 and 8.62; a full patch is still pending.
TrustStrike Labs