CVE-2026-111040
Received Received - Intake

Persistent HTML Injection in TinyMCE Editor Fields

Publication date: 2026-11-04

Last updated on: 2026-11-04

Assigner: Spanish National Cybersecurity Institute, S.A. (INCIBE)

Description
The platform allows persistent HTML injection into editable fields managed by TinyMCE. An authenticated attacker with low privileges can inject unsanitised HTML content which is stored in the database and subsequently rendered in other users’ browsers, affecting the display of content within the application.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-11-04
Last Modified
2026-11-04
Generated
2026-11-04
AI Q&A
2026-11-04
EPSS Evaluated
N/A
NVD
CVE-2026-111040
EUVD
EUVD-2026-116823

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Coupa Coupa Total Spend Management Platform 0

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-80 The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

CVE-2026-111040 is a medium-severity vulnerability in Coupa's Total Spend Management Platform. It allows persistent HTML injection in editable fields managed by TinyMCE. An authenticated attacker with low privileges can inject unsanitised HTML content that is stored in the database and later rendered in other users' browsers, potentially altering application content display.

Impact Analysis

This vulnerability could allow attackers to inject malicious HTML content that alters how content appears in the application for other users. This may lead to phishing attacks or other malicious activities if exploited, potentially compromising user interactions with the platform.

Mitigation Strategies

Disable or restrict access to editable fields managed by TinyMCE until a patch is available. Implement input validation and output encoding for HTML content. Monitor for suspicious HTML injection attempts in logs.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-111040. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart

Security Radar

News mentioning this vulnerability
Loading related security news...