CVE-2026-61824: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in kepano defuddle
CVE-2026-61824 is a high-severity cross-site scripting (XSS) vulnerability in kepano defuddle prior to version 0.19.1. The vulnerability arises because certain page-derived values such as image alt and src attributes, og:image values, and video descriptions are interpolated into HTML without proper context-appropriate escaping. This allows attacker-controlled content to inject malicious event-handler attributes or JavaScript URLs that execute when the extracted HTML is rendered. The issue affects specific extractor paths and is fixed in version 0.19.1.
AI Analysis
Technical Summary
The vulnerability in kepano defuddle versions before 0.19.1 involves improper neutralization of input during web page generation (CWE-79). Site extractors interpolate unescaped page-derived content into HTML strings, and the buildExtractorResponse() function returns this content without DOM-based sanitization. This allows injection of event-handler attributes or JavaScript URLs from malicious or attacker-controlled content on matching domains, leading to potential script execution in victims or downstream applications. The affected extractor source files include x-article.ts, substack.ts, and youtube.ts. The vulnerability is resolved in version 0.19.1.
Potential Impact
Successful exploitation can lead to execution of attacker-controlled scripts in the context of the victim or downstream application rendering the extracted HTML. This can result in partial confidentiality loss (C), limited integrity impact (I), and no availability impact (A), as reflected by the CVSS vector. The vulnerability is remotely exploitable without privileges, requiring user interaction.
Mitigation Recommendations
A fix is available in kepano defuddle version 0.19.1. Users and administrators should upgrade to version 0.19.1 or later to remediate this vulnerability. No other mitigation guidance is provided or necessary given the availability of the official fix.
CVE-2026-61824: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in kepano defuddle
Description
CVE-2026-61824 is a high-severity cross-site scripting (XSS) vulnerability in kepano defuddle prior to version 0.19.1. The vulnerability arises because certain page-derived values such as image alt and src attributes, og:image values, and video descriptions are interpolated into HTML without proper context-appropriate escaping. This allows attacker-controlled content to inject malicious event-handler attributes or JavaScript URLs that execute when the extracted HTML is rendered. The issue affects specific extractor paths and is fixed in version 0.19.1.
CVSS v3.1
Score 8.2high
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in kepano defuddle versions before 0.19.1 involves improper neutralization of input during web page generation (CWE-79). Site extractors interpolate unescaped page-derived content into HTML strings, and the buildExtractorResponse() function returns this content without DOM-based sanitization. This allows injection of event-handler attributes or JavaScript URLs from malicious or attacker-controlled content on matching domains, leading to potential script execution in victims or downstream applications. The affected extractor source files include x-article.ts, substack.ts, and youtube.ts. The vulnerability is resolved in version 0.19.1.
Potential Impact
Successful exploitation can lead to execution of attacker-controlled scripts in the context of the victim or downstream application rendering the extracted HTML. This can result in partial confidentiality loss (C), limited integrity impact (I), and no availability impact (A), as reflected by the CVSS vector. The vulnerability is remotely exploitable without privileges, requiring user interaction.
Mitigation Recommendations
A fix is available in kepano defuddle version 0.19.1. Users and administrators should upgrade to version 0.19.1 or later to remediate this vulnerability. No other mitigation guidance is provided or necessary given the availability of the official fix.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-10T20:17:57.993Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a88b3a2acd9273b49af19f8
Added to database: 08/21/2026, 20:22:58 UTC
Last enriched: 08/21/2026, 20:37:17 UTC
Last updated: 08/21/2026, 20:37:17 UTC
Views: 3
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.