🛡️ CVE-2026-53641

⚪ Unknown ✅ No Known Exploit CWE-79 NVD
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

FOSSBilling is a free, open-source billing and client management system. Versions 0.6.0 through 0.7.2 have a stored cross-site scripting (XSS) vulnerability in the client-facing email history views of FOSSBilling. Email HTML content (content_html) is rendered into a JavaScript template literal using the |raw filter, bypassing all output escaping. An attacker with admin access can inject malicious JavaScript payloads into email content that execute in the browser of any client who views their email history. Version 0.8.0 contains a fix. Some workarounds are available. Restrict admin account access, audit email content in the database for suspicious payloads, and/or monitor client accounts for unusual activity.

Weakness class

CVE-2026-53641 is classified as CWE-79: Cross-site Scripting (XSS). User-supplied data is written into a page without escaping, so attacker script runs in the browser of anyone who views it.

Affected software

CVE-2026-53641 is recorded against 1 package.

  • unknown

Timeline and source

Published on 6 July 2026 and last revised on 8 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE CWE-79
Public Exploit ✅ No
Source NVD
Published 2026-07-06
Updated 2026-08-11
Modified 2026-07-08
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —

Similar Threats

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