CVE-2026-123782
ChatWiki before 2.10.0 Cross-Tenant IDOR via SaveFormField and UpdateFormRequired
Description
ChatWiki before 2.10.0 contains an insecure direct object reference vulnerability in SaveFormField and UpdateFormRequired that allows authenticated users to modify other tenants' form fields. Attackers can pass their own form_id to satisfy the ownership check alongside another tenant's sequential form_field id to alter field names, descriptions, types and required flags, disrupting how submitted entries are stored.
INFO
Published Date :
Nov. 6, 2026, 3:17 p.m.
Last Modified :
Nov. 6, 2026, 3:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-123782
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update ChatWiki to version 2.10.0 or later.
- Verify form field access controls.
- Review audit logs for unauthorized changes.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-123782.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-123782 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-123782
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-123782 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-123782 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Nov. 06, 2026
Action Type Old Value New Value Added Description ChatWiki before 2.10.0 contains an insecure direct object reference vulnerability in SaveFormField and UpdateFormRequired that allows authenticated users to modify other tenants' form fields. Attackers can pass their own form_id to satisfy the ownership check alongside another tenant's sequential form_field id to alter field names, descriptions, types and required flags, disrupting how submitted entries are stored. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Added CWE CWE-639 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/123xxx/CVE-2026-123782.json">CVE-2026-123782</a> Added Reference https://github.com/zhimaAi/chatwiki Added Reference https://github.com/zhimaAi/chatwiki/blob/v2.9.6/internal/app/chatwiki/business/manage/form.go#L307-L352 Added Reference https://github.com/zhimaAi/chatwiki/blob/v2.9.6/internal/app/chatwiki/business/manage/form.go#L385-L411 Added Reference https://github.com/zhimaAi/chatwiki/commit/81dd7a34be0322dd0881e1b8cfe85de337fdaf2b Added Reference https://github.com/zhimaAi/chatwiki/commit/d1ca145e283e2cb652e0b1002d5f14d6a46671e3 Added Reference https://github.com/zhimaAi/chatwiki/issues/182 Added Reference https://github.com/zhimaAi/chatwiki/releases/tag/v2.10.0 Added Reference https://hackmd.io/@hieund/chatwiki-form-field-cross-tenant-idor Added Reference https://www.vulncheck.com/advisories/chatwiki-before-2.10.0-cross-tenant-idor-via-saveformfield-and-updateformrequired