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Vulnerability record · CVE-2026-34033 · published 9 June 2026

CVE-2026-34033: Apache answer cross-site scripting vulnerability

Apache · Answer

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.

5.4 CVSS 3.1 Medium EPSS 0.52% · top 58.1% CWE-80 · CWE-80CWE-79 · Cross-site scripting
5.4CVSS 3.1 base score
0.52%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
23 Jul 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://lists.apache.org/thread/wrfd9blbfotfg479jr8vlwfx6pwr9sgj Mailing List
http://www.openwall.com/lists/oss-security/2026/06/09/3 Mailing List

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-34033), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.