Simple 301 Redirects by BetterLinks - 2.0.0-2.0.3 - Arbitrary Plugin Installation
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-862.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Simple 301 Redirects by BetterLinks | 2.0.0 and later; 2.0.4 to before 2.0.4 | 2.0.4 | Patch available | CNA |
- Simple 301 Redirects by BetterLinks VendorUnknown Affected 2.0.0 and later; 2.0.4 to before 2.0.4 Fixed in 2.0.4 Patch available CNA
Remediation
- Fix · CNA Simple 301 Redirects by BetterLinks (Unknown) Fixed in 2.0.4
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Simple 301 Redirects by BetterLinks 2.0.0*, 2.0.4
5 records Highest priority Priority MEDIUM 4 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2021-06648 Simple 301 Redirects by BetterLinks - 2.0.0 – 2.0.3 - Arbitrary Plugin ActivationPriority MEDIUM 43
- TI-2021-06645 Simple 301 Redirects by BetterLinks - 2.0.0 – 2.0.3 - Unauthenticated Redirect ImportPriority MEDIUM 40
- TI-2021-06644 Simple 301 Redirects by BetterLinks - 2.0.0 – 2.0.3 - Unauthenticated Redirect ExportPriority MEDIUM 40
Timeline
- 2026-10-02 Threatist record created from CVE-2021-24354
- 2026-10-03 Alias added: GHSA-w57v-wqq6-mfw3
References
More wpdevteam Simple 301 Redirects vulnerabilities
- TI-2021-06648 Simple 301 Redirects by BetterLinks - 2.0.0 – 2.0.3 - Arbitrary Plugin Activation CVSS 3.1HIGH 8.8
- TI-2021-06645 Simple 301 Redirects by BetterLinks - 2.0.0 – 2.0.3 - Unauthenticated Redirect Import CVSS 3.1HIGH 8.8
- TI-2021-06644 Simple 301 Redirects by BetterLinks - 2.0.0 – 2.0.3 - Unauthenticated Redirect Export CVSS 3.1HIGH 8.8
- TI-2021-06647 Simple 301 Redirects by BetterLinks - 2.0.0 – 2.0.3 - Update and Retrieve Wildcard Value CVSS 3.1MEDIUM 4.3
Sources
- CVE-2021-24354 · CVE Program
- CVE-2021-24354 · NVD
- FIRST EPSS
- GHSA-w57v-wqq6-mfw3 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences