Cyber Resilience

CVE-2023-50725

Medium

Published: 22 December 2023

Published
22 December 2023
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 6.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:N
EPSS Score 0.0066 71.5th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-50725 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Resque Resque. Its CVSS base score is 6.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Web Portal Capture (T1056.003); ranked in the top 28.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Resque is a Redis-backed Ruby library for creating background jobs, placing them on multiple queues, and processing them later. The following paths in resque-web have been found to be vulnerable to reflected XSS: "/failed/?class=<script>alert(document.cookie)</script>" and "/queues/><img src=a onerror=alert(document.cookie)>". This issue…

more

has been patched in version 2.2.1.

CWE(s)
CWE-79

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1056.003 Web Portal Capture Collection
Adversaries may install code on externally facing portals, such as a VPN login page, to capture and transmit credentials of users who attempt to log into the service.
attack.mitre.org →
T1059.007 JavaScript Execution
Adversaries may abuse various implementations of JavaScript for execution.
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 →
Why these techniques?

Reflected XSS in resque-web enables arbitrary JavaScript execution in victims' browsers (T1059.007), credential capture from web portals (T1056.003), and theft of web session cookies via document.cookie (T1539).

Affected Assets

resque
resque
≤ 2.2.1

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing
addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

SI-10 Information Input Validation
addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

SI-15 Information Output Filtering
addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

References