CVE-2026-106602

Jetpack – WP Security, Backup, Speed, & Growth <= 16.2 - Missing Authorization

2026-10-07 00:00

Strategic Overview

Status: Patched in 16.3
Affected Plugin: Jetpack – WP Security, Backup, Speed, & Growth
Affected Version: <= 16.2
CVSS: 5.3Medium
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2026-106602

View all Jetpack – WP Security, Backup, Speed, & Growth vulnerabilities

At a glance

CVE-2026-106602 is a medium-severity Missing Authorization vulnerability in the Jetpack WordPress plugin, affecting versions <= 16.2. 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 16.3; sites on affected versions should update now. Disclosed October 2026, reported by Ananda Dhakal.

Vulnerability Overview

The Jetpack – WP Security, Backup, Speed, & Growth plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in all versions up to, and including, 16.2. This makes it possible for unauthenticated attackers to perform an unauthorized action.

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 Jetpack <= 16.2 takes a caller who can reach the endpoint. 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 Jetpack the fix is 16.3: builds <= 16.2 are affected, anything from 16.3 onward is not.

Remediation

Update to version 16.3, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Jetpack 16.3 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-106602 https://www.wordfence.com/threat-intel/vulnerabilities/id/83fe5090-744e-4541-8015-34a8256f256e https://nvd.nist.gov/vuln/detail/CVE-2026-106602

Related records

Same weakness class

Other vulnerabilities in Jetpack – WP Security, Backup, Speed, & Growth

CVSS Vector

5.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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