CVE-2026-81021

SupportCandy – AI Customer Support Ticket System & Live Chatbot Agent 3.2.9 - 3.5.2 - Unauthenticated Ticket Attachment Read

2026-09-07 00:00

Strategic Overview

Status: Patched in 3.5.3
Affected Plugin: SupportCandy – AI Customer Support Ticket System & Live Chatbot Agent
Affected Version: 3.2.9 – 3.5.2
CVSS: 5.3Medium
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2026-81021

View all SupportCandy – AI Customer Support Ticket System & Live Chatbot Agent vulnerabilities

At a glance

CVE-2026-81021 is a medium-severity Missing Authorization vulnerability in the SupportCandy WordPress plugin, affecting versions 3.2.9 – 3.5.2. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 3.5.3; sites on affected versions should update now. Disclosed September 2026, reported by Muni Nitish Kumar Yaddala.

Vulnerability Overview

The SupportCandy – AI Customer Support Ticket System & Live Chatbot Agent plugin for WordPress is vulnerable to Arbitrary Ticket Attachment Read in versions 3.2.9 through 3.5.2. This makes it possible for unauthenticated attackers to read arbitrary ticket attachments.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-862: Missing Authorization

Reaching this weakness in SupportCandy 3.2.9 – 3.5.2 takes no account at all. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For SupportCandy the fix is 3.5.3: builds 3.2.9 – 3.5.2 are affected, anything from 3.5.3 onward is not.

Remediation

Update to version 3.5.3, or a newer patched version

How does WordSec protect against this?

This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: SupportCandy 3.5.3 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-81021 https://www.wordfence.com/threat-intel/vulnerabilities/id/c6629349-996d-4873-ba01-c1374a1d0f8a https://nvd.nist.gov/vuln/detail/CVE-2026-81021

Related records

Same weakness class

Other vulnerabilities in SupportCandy – AI Customer Support Ticket System & Live Chatbot Agent

CVSS Vector

5.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityNone
AvailabilityNone

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