CVE-2025-24885
Published: 30 January 2025
Summary
CVE-2025-24885 is a high-severity Cross-site Scripting (CWE-79) vulnerability. Its CVSS base score is 7.6 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Steal Web Session Cookie (T1539); ranked at the 34.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 AC-3 (Access Enforcement) and SI-10 (Information Input Validation).
Deeper analysis
CVE-2025-24885 is a stored cross-site scripting (XSS) vulnerability, associated with CWE-79 and CWE-284, in the dojo component of pwn.college, an educational platform for hands-on cybersecurity learning and practice. The issue arises from missing access control on rendering custom unprivileged dojo pages, enabling users to inject and store malicious scripts that execute in the context of other users viewing those pages. The vulnerability was published on 2025-01-30 and carries a CVSS v3.1 base score of 7.6 (AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N).
Low-privileged users (PR:L), such as registered accounts on pwn.college, can exploit this over the network (AV:N) with low attack complexity (AC:L), though it requires user interaction (UI:R), such as victims accessing the affected dojo pages. Exploitation changes scope (S:C) and primarily achieves high confidentiality impact (C:H), potentially allowing attackers to steal sensitive data like session tokens or user information from victims, alongside low integrity impact (I:L) and no availability disruption (A:N).
Mitigation details are available in the GitHub security advisory for the pwn.college dojo repository at https://github.com/pwncollege/dojo/security/advisories/GHSA-8m79-rmhw-rg84.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-3972
Vulnerability details
pwn.college is an education platform to learn about, and practice, core cybersecurity concepts in a hands-on fashion. Missing access control on rendering custom (unprivileged) dojo pages causes ability for users to create stored XSS.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Stored XSS enables injection of scripts that execute in victim browsers to steal session tokens (T1539 Steal Web Session Cookie) and hijack sessions (T1185 Browser Session Hijacking).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly enforces approved authorizations to address the missing access control on rendering custom unprivileged dojo pages, preventing users from injecting stored XSS payloads.
Validates information inputs from low-privileged users creating custom dojo pages to block malicious scripts associated with CWE-79.
Filters information output when rendering custom dojo pages to prevent execution of stored XSS payloads in the context of other users.