CVE-2024-37383

MEDIUM KEV LAB

Roundcube Webmail < 1.5.7 and 1.6.x < 1.6.7 - Cross-Site Scripting via SVG Animate Attributes

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2024-37383 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added October 24, 2024. EIP tracks 4 public exploits from researchers including AmirZargham, bartfroklage, hyungin0505.

AI-analyzed exploit summary This exploit demonstrates a stored XSS vulnerability in Roundcube Webmail versions earlier than 1.5.6 or from 1.6 to 1.6.6. It automates the retrieval of all inbox messages and forwards them to an attacker-controlled server via JavaScript injection.

Description

Roundcube Webmail before 1.5.7 and 1.6.x before 1.6.7 allows XSS via SVG animate attributes.

Exploits (4)

exploitdb WORKING POC
by AmirZargham · textwebappsphp
https://www.exploit-db.com/exploits/52173

This exploit demonstrates a stored XSS vulnerability in Roundcube Webmail versions earlier than 1.5.6 or from 1.6 to 1.6.6. It automates the retrieval of all inbox messages and forwards them to an attacker-controlled server via JavaScript injection.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Moderate
Reliability
Reliable
Target: Roundcube Webmail < 1.5.6 or 1.6 to 1.6.6
Auth required
Prerequisites: Access to send a malicious email to the target · Victim interaction (opening the email) · Attacker-controlled server to receive exfiltrated data
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC 5 stars
by bartfroklage · client-side
https://github.com/bartfroklage/CVE-2024-37383-POC

This repository contains a functional proof-of-concept exploit for CVE-2024-37383, an XSS vulnerability in Roundcube. The exploit sends a crafted email with an SVG-based payload that triggers an alert when clicked by the victim in Roundcube's web interface.

Classification
Working Poc 95%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Roundcube 1.6.3
No auth needed
Prerequisites: SMTP access to send emails · Victim interaction (click required)
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC
by hyungin0505 · client-side
https://github.com/hyungin0505/CVE-2024-37383_PoC

This repository contains a functional PoC for CVE-2024-37383, an XSS vulnerability in Roundcube Webmail due to improper SVG attribute parsing. It includes a Docker setup for a vulnerable environment and a Python script to send a malicious email with an SVG payload.

Classification
Working Poc 95%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Roundcube Webmail v1.5.7 or v1.6.x < v1.6.7
No auth needed
Prerequisites: Docker environment · SMTP server access
devstral-2 · analyzed Feb 19, 2026 Full analysis →
nomisec WORKING POC
by amirzargham · client-side
https://github.com/amirzargham/CVE-2024-37383-exploit

This repository contains a functional JavaScript-based exploit for CVE-2024-37383, a stored XSS vulnerability in Roundcube Webmail. The exploit automates the extraction of all messages from a victim's inbox and forwards them to an attacker-controlled server via crafted SVG payloads.

Classification
Working Poc 95%
Attack Type
Xss
Complexity
Moderate
Reliability
Reliable
Target: Roundcube Webmail (versions < 1.5.6 or 1.6 to 1.6.6)
Auth required
Prerequisites: Victim interaction (clicking malicious SVG link) · Valid Roundcube session credentials · Attacker-controlled server to receive exfiltrated data
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Scores

CVSS v3 6.1
EPSS 0.6403
EPSS Percentile 98.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation active
Automatable no
Technical Impact partial

Lab Environment

COMMUNITY
Community Lab
docker pull roundcube/roundcubemail:1.6.6-apache
docker pull greenmail/standalone:latest
+1 more repos

Details

CISA KEV 2024-10-24
VulnCheck KEV 2024-10-09
InTheWild.io 2024-10-24
ENISA EUVD EUVD-2024-36625
CWE
CWE-79
Status published
Products (2)
debian/debian_linux 10.0
roundcube/webmail < 1.5.7
Published Jun 07, 2024
KEV Added Oct 24, 2024
Tracked Since Feb 18, 2026