CVE-2025-34330
Description
AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 include a web administration component (F2MAdmin) that exposes an unauthenticated prompt upload endpoint at AudioCodes_files/utils/IVR/diagram/ajaxPromptUploadFile.php. The script accepts an uploaded file and writes it into the C:\\F2MAdmin\\tmp directory using a filename derived from application constants, without any authentication, authorization, or file-type validation. A remote, unauthenticated attacker can upload or overwrite prompt- or music-on-hold–related files in this directory, potentially leading to tampering with IVR audio content or preparing files for use in further attacks.
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Affected products
4- Range: <=2.6.23
- AudioCodes Limited/AudioCodes Fax/IVR Appliancev5Range: 0
- cpe:2.3:a:audiocodes:interactive_voice_response:*:*:*:*:*:*:*:*Range: <=2.6.23
Patches
Vulnerability mechanics
References
4- pierrekim.github.io/advisories/2025-audiocodes-fax-ivr.txtnvdExploitThird Party Advisory
- pierrekim.github.io/blog/2025-11-20-audiocodes-fax-ivr-8-vulnerabilities.htmlnvdExploitThird Party Advisory
- www.vulncheck.com/advisories/audiocodes-fax-ivr-appliance-unauthenticated-prompt-file-upload-via-ajaxpromptuploadfilenvdThird Party Advisory
- www.audiocodes.com/media/g1in2u2o/0548-product-notice-end-of-service-for-audiocodes-auto-attendant-ivr-solution.pdfnvdProduct
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