CVE-2026-123782
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network with a low-privilege account. Limited direct impact.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 5.3 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-639 · Insecure direct object reference
- Record status
- Deferred
Attack profile CVSS 4.0 · 5.3
- Attack vector
- Network
- Complexity
- Low
- Attack requirements
- None
- Privileges needed
- Low
- User interaction
- None
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Raw vector
CVSS:4.0/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
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-123782.md and follow it. Check whether this project is affected by CVE-2026-123782. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/zhimaAi/chatwiki/commit/81dd7a34be0322dd0881e1b8cfe85de337fdaf2b
- https://github.com/zhimaAi/chatwiki/commit/d1ca145e283e2cb652e0b1002d5f14d6a46671e3
- https://github.com/zhimaAi/chatwiki/releases/tag/v2.10.0
References
- https://github.com/zhimaAi/chatwiki
- https://github.com/zhimaAi/chatwiki/blob/v2.9.6/internal/app/chatwiki/business/manage/form.go#L307-L352
- https://github.com/zhimaAi/chatwiki/blob/v2.9.6/internal/app/chatwiki/business/manage/form.go#L385-L411
- https://github.com/zhimaAi/chatwiki/commit/81dd7a34be0322dd0881e1b8cfe85de337fdaf2b
- https://github.com/zhimaAi/chatwiki/commit/d1ca145e283e2cb652e0b1002d5f14d6a46671e3
- https://github.com/zhimaAi/chatwiki/issues/182
- https://github.com/zhimaAi/chatwiki/releases/tag/v2.10.0
- https://hackmd.io/@hieund/chatwiki-form-field-cross-tenant-idor
- https://www.vulncheck.com/advisories/chatwiki-before-2.10.0-cross-tenant-idor-via-saveformfield-and-updateformrequired