Zoho Flow: PHP object injection

Unauthenticated PHP Object Injection in Zoho Flow <= 2.14.5 versions. The export does not disclose the endpoint, input parameter, vulnerable function or detailed input-processing path. No additional exploit mechanics are inferred. Untrusted deserialization may create PHP objects; code execution requires a usable gadget chain and its prerequisites, neither of which is established by this record. The structured affected range is n/a through 2.14.5.

CVE / CNA score 9.8 CVSS 3.1 · audit@patchstack.com

NVD score Pending NVD has not published its own CVSS assessment.

Component: Zoho Flow
Plugin slug: zoho-flow
Affected: n/a through 2.14.5
Safe version: See mitigation notes
Published: Oct 29, 2026
Weakness: CWE-502 — Deserialization of Untrusted Data

This CVE was published Oct 29, 2026 and is one of 5 known issues for this plugin.

What to do

Update, patch or deactivate.

Official author notes reviewed on 2026-10-30 through version 2.14.5 did not establish an exact fixed release for this CVE. SSRF/local-read fixes do not identify object injection. This archive’s uncertainty does not establish that the current release remains vulnerable. Do not deserialize attacker-controlled input into PHP objects; enforce the intended authorization before processing it. Official author notes: https://wordpress.org/plugins/zoho-flow/#developers.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

Unauthenticated PHP Object Injection in Zoho Flow <= 2.14.5 versions.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Primary and upstream sources

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