CVE-2023-2648
Weaver E-Office 9.5
Raw vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:LCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2023-2648 is a medium-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Weaver E-Office. Its CVSS base score is 6.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Data Obfuscation (T1001); ranked in the top 2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
Weaver E-Office 9.5 is affected by CVE-2023-2648, a critical vulnerability in the file /inc/jquery/uploadify/uploadify.php. The issue stems from improper handling of the Filedata argument, which permits unrestricted file uploads and is tracked under CWE-434. The flaw can be triggered remotely and carries a CVSS 3.1 score of 6.3.
An attacker with low-privileged network access can supply a malicious file through the uploadify.php endpoint to write arbitrary content to the server. Because the exploit has already been published, an authenticated user can leverage the upload to place executable code or other dangerous files on the system, resulting in limited but direct effects on confidentiality, integrity, and availability.
The vendor was notified before public disclosure but did not respond, and the referenced advisories contain no information on patches or configuration workarounds. The associated EPSS score currently stands at 0.9275 with a recorded peak of 0.9310.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-34114
Vulnerability Data
A vulnerability was found in Weaver E-Office 9.5. It has been classified as critical. This affects an unknown part of the file /inc/jquery/uploadify/uploadify.php. The manipulation of the argument Filedata leads to unrestricted upload. It is possible to initiate the attack…
more
remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-228777 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V5.1.1
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Requiring identifiable owners for portable devices reduces the attack surface for unrestricted uploads of dangerous file types via anonymous media.
Dangerous file uploads can be detonated in the chamber to determine malice before any production write or execution occurs.
Prevents unrestricted writing of arbitrary or malicious firmware by keeping hardware write-protect enabled except under tightly controlled manual procedures.
Scans files from external sources on download/open/execute, blocking unrestricted uploads of dangerous file types.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Hardened configuration baselines can enforce allowed file types and processing rules.
Restricting execution of unauthorized software directly blocks dangerous uploaded files from running.
Secure development practices include input validation and file-type restrictions that prevent this weakness.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.