Critical · published April 26, 2024
🚨 An attacker can upload malicious content to article drafts using a brute-forced FormID—like sneaking a fake document into a locked filing cabinet! 🔥 Imagine a librarian who allows anyone to request documents, but the request IDs are just four digits long and slightly altered. A crafty thief could easily guess those IDs and sneak in forged articles that look legitimate, all because the system was too trusting! With this vulnerability, an attacker could spread harmful content or misinformation within the Zammad platform, potentially undermining the entire integrity of your articles and data. This could lead to critical information leaks, data manipulation, and a complete loss of trust from your users. Absolutely devastating to any organization relying on Zammad for customer support!
Imagine a librarian who allows anyone to request documents, but the request IDs are just four digits long and slightly altered. A crafty thief could easily guess those IDs and sneak in forged articles that look legitimate, all because the system was too trusting! This vulnerability in Zammad prior to version 6.3.0 allows attackers to exploit insecure FormIDs in the Upload Cache, enabling them to brute-force access to upload malicious content to unauthorized article drafts.
With this vulnerability, an attacker could spread harmful content or misinformation within the Zammad platform, potentially undermining the entire integrity of your articles and data. This could lead to critical information leaks, data manipulation, and a complete loss of trust from your users. Absolutely devastating to any organization relying on Zammad for customer support! Immediately upgrade Zammad to version 6.3.0 or later to close this critical gap. Additionally, consider implementing rate-limiting on FormID submissions to thwart brute-force attempts. Regularly audit access controls to ensure unauthorized uploads are not possible. 🛡️ You've got this! Fixing this issue will keep your platform safe and secure—let's lock it down! 💪✨
| Product | Versions | Fixed in |
|---|---|---|
| zammad/zammad | ≥ 6.2.0, < 6.3.0 | 6.3.0 |
| zammad/zammad | all versions | — |