CVE-2025-24369 – Anubis Bot Protection Weakness

The following table lists the changes that have been made to the
CVE-2025-24369 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Jan. 27, 2025

    Action Type Old Value New Value
    Added Description Anubis is a tool that allows administrators to protect bots against AI scrapers through bot-checking heuristics and a proof-of-work challenge to discourage scraping from multiple IP addresses. Anubis allows attackers to bypass the bot protection by requesting a challenge, formulates any nonce (such as 42069), and then passes the challenge with difficulty zero. Commit e09d0226a628f04b1d80fd83bee777894a45cd02 fixes this behavior by not using a client-specified difficulty value.
    Added CVSS V4.0 AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CWE CWE-807
    Added Reference https://github.com/Xe/x/commit/7bd7b209f4f1b897de85ec8973458dc8be606a8b
    Added Reference https://github.com/Xe/x/commit/e09d0226a628f04b1d80fd83bee777894a45cd02
    Added Reference https://github.com/Xe/x/security/advisories/GHSA-56w8-8ppj-2p4f
    Added Reference https://xeiaso.net/notes/2025/GHSA-56w8-8ppj-2p4f
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