CVE-2024-27290

Medium

Published: 21 March 2024

Published

21 March 2024

Modified

02 September 2025

KEV Added

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Patch

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CVSS Score v3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Score 0.0021 42.7th percentile

Risk Priority 12 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-27290 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Jhpyle Docassemble. Its CVSS base score is 6.1 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique JavaScript (T1059.007); ranked at the 42.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2024-0683

Vulnerability details

Docassemble is an expert system for guided interviews and document assembly. Prior to 1.4.97, a user could type HTML into a field, including the field for the user's name, and then that HTML could be displayed on the screen as…

HTML. The vulnerability has been patched in version 1.4.97 of the master branch.

CWE(s): CWE-79

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1059.007 JavaScript Execution

Adversaries may abuse various implementations of JavaScript for execution.

attack.mitre.org →

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

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 →

T1555.003 Credentials from Web Browsers Credential Access

Adversaries may acquire credentials from web browsers by reading files specific to the target browser.

attack.mitre.org →

Why these techniques?

XSS vulnerability enables exploitation of public-facing web app (T1190), arbitrary JavaScript execution in victim browsers (T1059.007), and facilitates stealing web session cookies (T1539) or other browser credentials (T1555.003) via injected scripts.