CVE-2026-34033
Apache Answer: HTML Content Injection in Email
Description
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.0. User-supplied content was included in notification emails without proper escaping, allowing authenticated users to inject arbitrary HTML into emails sent to other users. Users are recommended to upgrade to version 2.0.1, which fixes the issue.
INFO
Published Date :
June 9, 2026, 9:16 a.m.
Last Modified :
June 11, 2026, 3:35 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Upgrade Apache Answer to version 2.0.1.
- Escape all user-supplied content in emails.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-34033.
| URL | Resource |
|---|---|
| https://lists.apache.org/thread/wrfd9blbfotfg479jr8vlwfx6pwr9sgj | Mailing List |
| http://www.openwall.com/lists/oss-security/2026/06/09/3 | Mailing List |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-34033 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-34033
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-34033 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-34033 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jun. 11, 2026
Action Type Old Value New Value Added CWE CWE-79 Added CPE Configuration OR *cpe:2.3:a:apache:answer:*:*:*:*:*:*:*:* versions up to (excluding) 2.0.1 Added Reference Type CVE: http://www.openwall.com/lists/oss-security/2026/06/09/3 Types: Mailing List Added Reference Type Apache Software Foundation: https://lists.apache.org/thread/wrfd9blbfotfg479jr8vlwfx6pwr9sgj Types: Mailing List -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 09, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Jun. 09, 2026
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2026/06/09/3 -
New CVE Received by [email protected]
Jun. 09, 2026
Action Type Old Value New Value Added Description Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.0. User-supplied content was included in notification emails without proper escaping, allowing authenticated users to inject arbitrary HTML into emails sent to other users. Users are recommended to upgrade to version 2.0.1, which fixes the issue. Added CWE CWE-80 Added Reference https://lists.apache.org/thread/wrfd9blbfotfg479jr8vlwfx6pwr9sgj