CVE-2023-23327
Description
An Information Disclosure vulnerability exists in AvantFAX 3.3.7. Backups of the AvantFAX sent/received faxes, and database backups are stored using the current date as the filename and hosted on the web server without access controls.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
AvantFAX 3.3.7 stores fax and database backups with predictable filenames without access controls, enabling unauthenticated data disclosure.
Vulnerability
AvantFAX 3.3.7 stores backups of sent/received faxes and the database in a web-accessible directory. The filenames use the current date (e.g., YYYY-MM-DD.tar.gz) and are served without any authentication or access control checks. This affects version 3.3.7 and possibly earlier releases [1].
Exploitation
An unauthenticated attacker can enumerate or guess the backup filenames based on the date pattern and send HTTP GET requests to download the archive files. No prior authentication or special privileges are required [1].
Impact
Successful exploitation leads to disclosure of sensitive information, including the contents of sent and received faxes and the entire database. This may expose personal data, fax contents, user credentials, and other confidential information [1].
Mitigation
The vulnerability has been addressed in an updated release provided by AvantFAX in January 2023 (likely version 3.3.8). Users should upgrade to the latest patched version. Additionally, administrators can restrict access to the backup directory using web server configuration (e.g., .htaccess) as a temporary workaround [1].
AI Insight generated on May 25, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
2- AvantFAX/AvantFAXdescription
Patches
0No patches discovered yet.
Vulnerability mechanics
No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.
References
2News mentions
0No linked articles in our index yet.