Web App RCE and Privilege Escalation Dominate; Zero KEV This Week

Remote code execution in Yamcs (yamcs-core <= 5.12.7 and 5.13.0-5.13.1) lets an authenticated, low-privileged user run arbitrary OS commands by injecting a StreamSQL LIKE pattern that breaks out of a generated Java string literal compiled at runtime by Janino. Because the pattern is embedded raw whether it arrives as a SQL literal or a bound '?' argument, the sink is reachable not only from the archiving endpoints but from routine read-only APIs (readRows, events search, activities listing), including the Events page search box. A detailed vendor-published proof of concept exists; this is not in CISA KEV, so it is publicly available exploit code rather than confirmed active exploitation.

Remote code execution in Pimcore (all releases up to 12.3.9, plus 2026.1.0 through 2026.1.5) lets any authenticated user holding only the ordinary low-privilege 'objects' DataObjects permission import a DataObject class definition whose field name breaks out of the generated 'protected $<name>;' property and injects attacker-controlled PHP into the class file Pimcore emits, executing arbitrary code as the web-server user when an object of that class is instantiated. The same unvalidated field name is concatenated into ALTER TABLE DDL, giving a parallel SQL-injection primitive. It is an incomplete-fix sibling of CVE-2026-5394, which hardened only the composite-index sink; the advisory (GHSA-9x44-4gxf-8c25) ships a working browser-console PoC, but there is no CISA KEV entry and no EPSS score in the provided data.

Unauthenticated arbitrary PHP function invocation in the Tutor LMS WordPress plugin before 4.0.6 lets remote attackers overwrite internal template variables via request data and call any zero-argument PHP function, returning its output to the attacker. This enables information disclosure and potentially broader compromise depending on which functions are reachable. Publicly available exploit code exists (reported by WPScan), though the flaw is not listed in CISA KEV.

Arbitrary file read in Yu AI Code Mother v4.3 lets anonymous, remote attackers retrieve files outside the intended preview directory via the /api/static/{deployKey}/ static-resource endpoint, which concatenates attacker-controlled path segments to the preview root without normalization. Publicly available exploit code exists, though the flaw is not listed in CISA KEV and carries a low EPSS score (0.15%, 4th percentile), indicating no evidence of widespread active exploitation. The practical impact is unauthenticated disclosure of sensitive server-side files (source code, configuration, secrets), not code execution.

Privilege escalation to full site takeover affects the MemberHero WordPress plugin through version 6.9, where the frontend registration flow fails to restrict which account fields a visitor may set, letting unauthenticated attackers self-register with an arbitrary role - including Administrator. Version 6.9 was advertised as the fix but the patch is incomplete, so current installs remain exploitable to gain admin access and hijack existing accounts, and no fully-fixed release exists at time of analysis. Publicly available exploit code exists (WPScan), though EPSS remains low at 0.15% (4th percentile).

Arbitrary code execution in QWED-MCP before 0.2.1 stems from its verify_math_expression() library function feeding attacker-controlled expression and claimed_result strings into SymPy's parse_expr() with an unrestricted built-in namespace, turning a math-verification routine into a Python eval() sink. Any downstream integration that forwards untrusted input to this public API lets an attacker run OS commands as the qwed-mcp process user (root-level RCE confirmed in a container by the vendor advisory). Publicly available exploit code exists via the GHSA advisory PoC, but this is not listed in CISA KEV; the published CVSS is 9.8 while real reach depends on how the library is wired up.

Unauthenticated remote code execution in SENAITE.CORE (senaite.core) 2.0.0 through 2.6.0 lets any network-reachable attacker run arbitrary Python in the Zope worker process by chaining a missing authorization check with an eval() sink in the JSON API. The anonymous-reachable /@@API/update route calls eval() on attacker-supplied RecordsField/RecordField values before any permission or write check fires, and a public working PoC (tested against the stock senaite/senaite:v2.6.0 Docker image) demonstrates credential-free command execution. Publicly available exploit code exists; the flaw is not listed in CISA KEV, so there is no confirmation of active exploitation.

Remote code execution in Yamcs (open-source mission-control server) versions <= 5.12.7 and 5.13.0-5.13.1 allows a caller with the CreateInstances privilege - or any unauthenticated user in the default no-security.yaml configuration where guest is superuser - to inject YAML into an instance template via the templateArgs parameter of POST /api/instances (and PATCH /api/instances/{instance}). Because arguments are written into the rendered config as raw, unescaped text and then loaded as YAML, an attacker can inject a services: entry that instantiates org.yamcs.ProcessRunner and executes an arbitrary command as the Yamcs service account. Publicly available exploit code exists (a full PoC with a reverse shell is published in the GitHub Security Advisory), and vendor patches are available in 5.12.8 and 5.13.2.