CVE-2023-2523 (GCVE-0-2023-2523)

Vulnerability from cvelistv5 – Published: 2023-05-04 18:00 – Updated: 2024-08-02 06:26
VLAI Shadowserver Previdian
Title
Weaver E-Office unrestricted upload
Summary
A vulnerability was found in Weaver E-Office 9.5. It has been rated as critical. Affected by this issue is some unknown functionality of the file App/Ajax/ajax.php?action=mobile_upload_save. The manipulation of the argument upload_quwan leads to unrestricted upload. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-228014 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Severity
7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
7.3 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3794 records in the last 180 days details
References
URL Tags
https://vuldb.com/?id.228014 vdb-entrytechnical-description
https://vuldb.com/?ctiid.228014 signaturepermissions-required
https://github.com/RCEraser/cve/blob/main/Weaver.md exploit
Impacted products
Vendor Product Version CPE status
Weaver E-Office Affected: 9.5
guessed Create a notification for this product.
Credits
RCEraser (VulDB User)
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: f1bf7728-5697-4ef0-bf87-6e46b8f2e37c

Vulnerability ID: CVE-2023-2523

Status: Confirmed

Status Updated: 2026-11-01 00:00 UTC

Exploited: Yes

Characteristics
Severity: 98.0
Timestamps
First Seen: 2026-05-13
Asserted: 2026-05-13
Last Seen: 2026-11-01
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Weaver / Weave E-Office | Class: other-software | Severity: Critical (CVSS 9.8) | IoT: no | In CISA KEV: no | Honeypot connections on 2026-11-01: 2
Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details
1D 1
Iot no
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class other-software
7D Avg 0
Vendor Weaver
30D Avg 0
90D Avg 0
Product Weave E-Office
Cisa Kev no
Connections 2
Observation Date 2026-11-01
Vulnerability Class CVSS
Vulnerability Score 9.8
Vulnerability Severity Critical
References
Created: 2026-07-01 05:54 UTC | Updated: 2026-11-03 01:02 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 66ad7f6e-a604-4910-afda-f47007d7b6a2

Vulnerability ID: CVE-2023-2523

Status: Confirmed

Status Updated: 2023-05-04 18:00 UTC

Exploited: Yes

Timestamps
First Seen: 2023-05-04
Asserted: 2023-05-04
Scope
Notes: Weaver E-Office unrestricted upload | Affected: Weaver / E-Office | CVSS: 7.3 (HIGH) | EPSS: 0.32895 | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details
Feed Previdian (previdian.com)
Title Weaver E-Office unrestricted upload
Cve Id CVE-2023-2523
Vendor Weaver
Ghsa Id GHSA-W8G9-XRV8-VFW2
Product E-Office
Added Date 2023-05-04T18:00:05.000Z
Cvss Score 7.3
Epss Score 0.32895
Previous Ids
Cvss Severity HIGH
Virtual Patch False
Cvss Estimated False
Epss Percentile 0.98358
Used In Malware unknown
Vulnerability Id CVE-2023-2523
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-11-04 13:01 UTC | Updated: 2026-11-04 13:01 UTC
Show details on NVD website
To clipboard 

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