AJAX action in the Simple 301 Redirects by BetterLinks: A security weakness
AJAX action in the Simple 301 Redirects by BetterLinks is affected by a security weakness. Exposure depends on how the affected operation is made reachable by the site. The resulting impact depends on how the affected component exposes the vulnerable operation.
- Component
- AJAX action in the Simple 301 Redirects by BetterLinks
- Plugin slug
simple-301-redirects- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Jun 14, 2021
- Weakness
- CWE-862 — Missing Authorization
This CVE was published Jun 14, 2021 and is one of 6 known issues for this plugin.
Update, patch or deactivate.
Update AJAX action in the Simple 301 Redirects by BetterLinks to a release outside the affected range, or disable and remove it until a fixed version is available.
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.
Technical description
A lack of capability checks and insufficient nonce check on the AJAX action in the Simple 301 Redirects by BetterLinks WordPress plugin before 2.0.4, made it possible for authenticated users to install arbitrary plugins on vulnerable sites.
NVD vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H