CVE-2025-24885

High

Published: 30 January 2025

Published

30 January 2025

Modified

15 April 2026

KEV Added

—

Patch

—

CVSS Score 7.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N

EPSS Score 0.0015 34.6th percentile

Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

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 34.6th 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).

Threat & Defense at a Glance

What attackers do: exploitation maps to Steal Web Session Cookie (T1539) and 1 other technique. What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

AC-3 Access Enforcement good match

prevent

Directly enforces approved authorizations to address the missing access control on rendering custom unprivileged dojo pages, preventing users from injecting stored XSS payloads.

SI-10 Information Input Validation good match

prevent

Validates information inputs from low-privileged users creating custom dojo pages to block malicious scripts associated with CWE-79.

SI-15 Information Output Filtering good match

prevent

Filters information output when rendering custom dojo pages to prevent execution of stored XSS payloads in the context of other users.

MITRE ATT&CK Enterprise TechniquesAI

T1539 Steal Web Session Cookie Credential Access

An adversary may steal web application or service session cookies and use them to gain access to web applications or Internet services as an authenticated user without needing credentials.

attack.mitre.org →

T1185 Browser Session Hijacking Collection

Adversaries may take advantage of security vulnerabilities and inherent functionality in browser software to change content, modify user-behaviors, and intercept information as part of various browser session hijacking techniques.

attack.mitre.org →

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).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

NVD Description

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.

Deeper analysisAI

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.