Simple 301 Redirects Addon Bulk Uploader <= 1.2.4 - Missing Authentication on Option Changes
Strategic Overview
- Status
- Patched in 1.2.5
- Affected Plugin
- Simple 301 Redirects – Addon – Bulk Uploader
- Affected Version
< 1.2.5- CVSS
- 6.1Medium
- Weakness type
- CWE-287 · Improper Authentication
- CVE
CVE-2019-15818
At a glance
CVE-2019-15818 is a medium-severity Improper Authentication vulnerability in the Simple 301 Redirects WordPress plugin, affecting versions < 1.2.5. It carries a CVSS score of 6.1 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.2.5; sites on affected versions should update now. Disclosed August 2019, reported by Jerome Bruandet.
Vulnerability Overview
The simple-301-redirects-addon-bulk-uploader plugin through 1.2.4 for WordPress has no requirement for authentication for action=bulk301export or action=bulk301clearlist.
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.
CWE-287: Improper Authentication
Reaching this weakness in Simple 301 Redirects < 1.2.5 takes a caller who can reach the endpoint. Improper authentication means the mechanism that proves who a caller is can be satisfied without the secret it was supposed to require.
An attacker authenticates as another user — administrators included — without ever knowing a password, so password policies and login rate limits never come into play. For Simple 301 Redirects the fix is 1.2.5: builds < 1.2.5 are affected, anything from 1.2.5 onward is not.
Remediation
Update to version 1.2.5, 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: Simple 301 Redirects 1.2.5 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in Simple 301 Redirects – Addon – Bulk Uploader
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