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CVE-2026-28695 is an authenticated remote code execution vulnerability in Craft CMS affecting 4.x and 5.x branches. The issue arises from server-side template injection in Twig where the create() Twig function exposes Craft::createObject(), allowing instantiation of attacker-controlled PHP classes with attacker-supplied constructor arguments. By combining this primitive with the bundled symfony/process dependency, an attacker can build a gadget chain that results in arbitrary command execution. The issue is described as bypassing the prior fix for CVE-2025-57811. According to the provided content, affected versions include 4.x releases introduced at 4.0.0-RC1 and 5.x releases introduced at 5.8.7; fixes are available in 4.17.0-beta.1 and 5.9.0-beta.1.
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2 valid exploits after Mallory filtered fakes, detection scripts, and README-only repos.
The repository contains a README and one Python executable, exp.py. The script is a standalone authenticated exploit for a claimed bypass of the CVE-2026-28695 Craft CMS fix, targeting Craft CMS versions up to 5.9.8. It creates a requests session, extracts CSRF tokens from the login and dashboard pages, authenticates with supplied credentials, then sends a malicious JSON request to the element-search endpoint. The payload abuses Yii AttributeTypecastBehavior configuration and the Psy\Readline\Hoa\ConsoleProcessus::execute gadget to execute the operator-provided command. Results are intentionally blind: only the HTTP status is displayed, while timeouts are treated as potentially expected for blocking commands. The README provides a usage example that supplies a BusyBox netcat shell command, but no hardcoded remote listener, IP address, or domain is present.
The repository contains a GPL-3.0 license, a detailed README, and one Python entry point, `exploit.py`. The script uses `requests` with certificate verification disabled, establishes a Craft Control Panel session by scraping CSRF tokens from the login and dashboard pages, and sends a crafted JSON request to the element-search action. Its claimed gadget instantiates Yii `AttributeTypecastBehavior` and maps a typecast callback to `Psy\Readline\Hoa\ConsoleProcessus::execute`, aiming to reach command execution through `call_user_func()`. Execution is treated as blind because the script expects no command output and accepts an HTTP 500 response. `--check` compares baseline and `sleep 5` response times, while a supplied positional command runs a single command and `--bind` launches a configurable socat listener (default TCP/4445) executing `/bin/sh`. The script includes default credentials (`User` / `SecureP4$$!`) that can be overridden. It is a standalone operational PoC rather than a Metasploit, Nuclei, or other framework module.
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Cross-references every affected SKU, including bundled OEM variants.
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