CVE-2026-13703

SEO Redirection Plugin – 301 Redirect Manager <= 9.18 - Authenticated (Subscriber+) Information Exposure

2026-08-03 00:00

Strategic Overview

Status: Patched in 9.19
Affected Plugin: SEO Redirection Plugin – 301 Redirect Manager
Affected Version: <= 9.18
CVSS: 4.3Medium
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2026-13703

View all SEO Redirection Plugin – 301 Redirect Manager vulnerabilities

At a glance

CVE-2026-13703 is a medium-severity Missing Authorization vulnerability in the SEO Redirection Plugin WordPress plugin, affecting versions <= 9.18. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 9.19; sites on affected versions should update now. Disclosed August 2026, reported by j4ck13ch4n.

Vulnerability Overview

The SEO Redirection Plugin – 301 Redirect Manager plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 9.18. This makes it possible for authenticated attackers, with Subscriber-level access and above, to extract redirect rule data.

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 interaction from a victim user.

CWE-862: Missing Authorization

Reaching this weakness in SEO Redirection Plugin <= 9.18 takes an account at Subscriber level or above. 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 SEO Redirection Plugin the fix is 9.19: builds <= 9.18 are affected, anything from 9.19 onward is not.

Remediation

Update to version 9.19, 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: SEO Redirection Plugin 9.19 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-13703 https://www.wordfence.com/threat-intel/vulnerabilities/id/19290ae2-0eec-4b95-baa6-44f507a75e0a https://nvd.nist.gov/vuln/detail/CVE-2026-13703

Related records

Other vulnerabilities in SEO Redirection Plugin – 301 Redirect Manager

CVSS Vector

4.3

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

Base

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

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