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CVE-2023-29489 (SEC-669) is a reflected cross-site scripting vulnerability in cPanel's cpsrvd error page. Before the fixed releases, an invalid webcall ID can be reflected in the error-page response without adequate output encoding, enabling attacker-controlled script content to execute in the security context of a cPanel interface user.
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What an attacker gets, and what they’ve been doing with it.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This repository contains a Python script (cve_2023_29489.py) and a README.md. The script is an operational exploit for CVE-2023-29489, a cross-site scripting (XSS) vulnerability in cPanel. The exploit takes a list of target hostnames or IP addresses (provided by the user in a file), and for each, attempts to access the /cpanelwebcall endpoint with a crafted XSS payload. If the payload is reflected and triggers a JavaScript prompt, the host is considered vulnerable. Results are printed to the console, saved to CVE-2023-29489.txt, and vulnerable URLs are opened in the default web browser. The script uses multithreading for efficiency and provides colored terminal output. The README provides installation and usage instructions for both Kali Linux and Termux environments. No hardcoded target endpoints are present; the script is designed for mass scanning of user-supplied cPanel hosts.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A prior cPanel vulnerability referenced only as background through a URL; the content provides no technical details.
A reflected cross-site scripting vulnerability in cPanel that can be exploited without authentication; the report highlights hacktivists sharing a target list and an exploit for Israeli websites affected by it.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.