CVE-2026-48208 — Denial of Service
CVE-2026-48208 — An improper neutralization of active SVG content in OTRS or ((OTRS)) Community Edition ticket article rendering allows attackers to inject specially crafted SVG payloads via email content, leading to browser-side resource exhaustion and denial of service when affected tickets are op
What This Means For You
- If your environment is affected by CWE-400, CWE-791, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-48208 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-48208 - OTRS SVG Denial of Service via Email
title: CVE-2026-48208 - OTRS SVG Denial of Service via Email
id: scw-2026-06-01-ai-1
status: experimental
level: medium
description: |
Detects specially crafted SVG payloads within email content, indicative of CVE-2026-48208. The vulnerability allows for resource exhaustion and denial of service when OTRS ticket articles containing these SVG elements are rendered. This rule specifically looks for SVG tags and common JavaScript event handlers often used in such exploits, which are designed to trigger without explicit user interaction beyond opening the ticket.
author: SCW Feed Engine (AI-generated)
date: 2026-06-01
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-48208/
tags:
- attack.initial_access
- attack.t1566.002
logsource:
category: email
detection:
selection:
field|contains:
- '<svg'
- 'onload='
- 'onerror='
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-48208 | vulnerability | CVE-2026-48208 |
| CWE-400 | weakness | CWE-400 |
| CWE-791 | weakness | CWE-791 |
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | June 01, 2026 at 07:16 UTC |
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