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CVE-2026-34033: CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in Apache Software Foundation Apache Answer

0
Medium
Published: 06/09/2026 (06/09/2026, 09:32:07 UTC)
Source: CVE Database V5
Vendor/Project: Apache Software Foundation
Product: Apache Answer

Description

CVE-2026-34033 is a medium severity vulnerability in Apache Answer affecting versions before 2.0.1. It involves improper neutralization of script-related HTML tags (basic XSS) where user-supplied content is included in notification emails without proper escaping. This allows authenticated users to inject arbitrary HTML into emails sent to other users. The issue is fixed in Apache Answer version 2.0.1.

CVSS v3.1

Score 5.4medium

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected software

Apache Software Foundation

Apache Answer

Affected versions
>=0 <=2.0.0
org.apache.answer/apache-answer
pkg:maven/org.apache.answer/apache-answer
Affected versions
<2.0.1

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 07/31/2026, 21:31:13 UTC

Technical Analysis

This vulnerability in Apache Answer (through version 2.0.0) allows authenticated users to inject arbitrary HTML into notification emails due to improper escaping of user-supplied content. This is a basic cross-site scripting (XSS) flaw categorized under CWE-80. The vulnerability is addressed by upgrading to version 2.0.1, which properly neutralizes script-related HTML tags in emails.

Potential Impact

The vulnerability allows authenticated users to inject arbitrary HTML content into notification emails sent to other users, potentially leading to cross-site scripting attacks within email clients. This can result in limited confidentiality and integrity impacts but does not affect availability. The CVSS score of 5.4 reflects a medium severity with network attack vector, low attack complexity, required privileges, and user interaction.

Mitigation Recommendations

A patch is available in Apache Answer version 2.0.1 that fixes this vulnerability. Users should upgrade to version 2.0.1 to remediate the issue. No additional mitigation steps are indicated by the vendor advisory.

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Technical Details

Data Version
5.2
Assigner Short Name
apache
Date Reserved
2026-03-25T13:41:23.508Z
State
PUBLISHED

Threat ID: 6a27e32a8dd33fbd85126075

Added to database: 06/09/2026, 09:55:54 UTC

Last enriched: 07/31/2026, 21:31:13 UTC

Last updated: 09/14/2026, 10:01:30 UTC

Views: 85

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