phpBB: Stored XSS via SVG Upload — check_content() Blocklist Bypass & 256-Byte Scan Limit (Self-Propagating Worm)

A stored XSS vulnerability was discovered in phpBB 4.0.0-a2-dev. The vulnerability was caused by an incomplete blocklist for file uploads and a 256-byte read limit in the content scanning check. Specifically, SVG files with malicious payloads in the onload and onbegin attributes were able to bypa...

CVE-2025-65734

An authenticated arbitrary file upload vulnerability in the Courses/Work Assignments module of gunet Open eClass v3.11, and fixed in v3.13, allows attackers to execute arbitrary code via uploading a crafted SVG file...

PT-2026-25842

DiceBear is an avatar library for designers and developers. Prior to version 9.4.0, the ensureSize function in @dicebear/converter read the width and height attributes from the input SVG to determine the output canvas size for rasterization PNG, JPEG, WebP, AVIF. An attacker who can supply a...

CVE-2025-65734: Improper Neutralization of Input During Web Page Generation

An authenticated arbitrary file upload vulnerability in the Courses/Work Assignments module of gunet Open eClass v3.11, and fixed in v3.13, allows attackers to execute arbitrary code via uploading a crafted SVG file...

The vulnerability of the WriteSVGImage function in the console-based image editing tool ImageMagick, which allows a hacker to trigger a service failure.

The vulnerability of the WriteSVGImage function in the console-based image editing tool ImageMagick is related to integer overflow. Exploiting this vulnerability could allow a malicious actor to cause service interruptions...

CVE-2025-65734

An authenticated arbitrary file upload vulnerability in the Courses/Work Assignments module of gunet Open eClass v3.11, and fixed in v3.13, allows attackers to execute arbitrary code via uploading a crafted SVG file...

OESA-2026-1631 qt5-qtsvg security update

The Qt SVG module provides functionality for displaying SVG images in widget, and to create SVG files using drawing commands. Security Fixes: The module will parse a pattern node which is not a child of a structural node. The node will be deleted after creation but might be accessed later leading...

OESA-2026-1630 qt5-qtsvg security update

The Qt SVG module provides functionality for displaying SVG images in widget, and to create SVG files using drawing commands. Security Fixes: The module will parse a pattern node which is not a child of a structural node. The node will be deleted after creation but might be accessed later leading...

OESA-2026-1629 qt5-qtsvg security update

The Qt SVG module provides functionality for displaying SVG images in widget, and to create SVG files using drawing commands. Security Fixes: The module will parse a pattern node which is not a child of a structural node. The node will be deleted after creation but might be accessed later leading...

OESA-2026-1628 qt5-qtsvg security update

The Qt SVG module provides functionality for displaying SVG images in widget, and to create SVG files using drawing commands. Security Fixes: The module will parse a pattern node which is not a child of a structural node. The node will be deleted after creation but might be accessed later leading...

OESA-2026-1627 qt5-qtsvg security update

The Qt SVG module provides functionality for displaying SVG images in widget, and to create SVG files using drawing commands. Security Fixes: The module will parse a pattern node which is not a child of a structural node. The node will be deleted after creation but might be accessed later leading...

Linux Distros Unpatched Vulnerability : CVE-2026-31899

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to Kozea/CairoSVG has exponential denial of service via recursive element amplificatio...

OneUptime: Stored XSS via Mermaid Diagram Rendering (securityLevel: "loose")

Summary The Markdown viewer component renders Mermaid diagrams with securityLevel: "loose" and injects the SVG output via innerHTML. This configuration explicitly allows interactive event bindings in Mermaid diagrams, enabling XSS through Mermaid's click directive which can execute arbitrary...

PYSEC-2026-2122

CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to Kozea/CairoSVG has exponential denial of service via recursive element amplification in cairosvg/defs.py. This causes CPU exhaustion from a small input...

CVE-2026-31899

CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to Kozea/CairoSVG has exponential denial of service via recursive element amplification in cairosvg/defs.py. This causes CPU exhaustion from a small input...

EUVD-2026-12091

CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to Kozea/CairoSVG has exponential denial of service via recursive element amplification in cairosvg/defs.py. This causes CPU exhaustion from a small input...

CVE-2026-31899 CairoSVG vulnerable to Exponential DoS via recursive <use> element amplification

CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to Kozea/CairoSVG has exponential denial of service via recursive element amplification in cairosvg/defs.py. This causes CPU exhaustion from a small input...

CairoSVG vulnerable to Exponential DoS via recursive <use> element amplification

Summary Kozea/CairoSVG 300K downloads/week has exponential denial of service via recursive element amplification in cairosvg/defs.py line 335. This causes CPU exhaustion from a small input. Severity High — CVSS 3.1: 7.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Vulnerable Code File:...

GHSA-F38F-5XPM-9R7C CairoSVG vulnerable to Exponential DoS via recursive <use> element amplification

Summary Kozea/CairoSVG 300K downloads/week has exponential denial of service via recursive element amplification in cairosvg/defs.py line 335. This causes CPU exhaustion from a small input. Severity High — CVSS 3.1: 7.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Vulnerable Code File:...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling through the use function in the SVG recursive processing workflow. An attacker can cause excessive CPU consumption by submitting a specially crafted SVG file with deeply nested...