CVE-2026-66464: WordPress Internal Link Optimiser plugin <= 5.2.7 - Broken Access Control vulnerability
- Is it exploited?
Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of .
VulnCheck KEV lists it since . It cites 1 public report, the first from .
- How likely is exploitation in the next 30 days?
- 0.3%
EPSS score, percentile 18.6 of all scored records. A probability estimated by FIRST, not a report of exploitation.
- How severe?
- 6.5 Medium
CVSS v3.1 base score, given by the CNA
- What should I do?
CISA has set no required action, because the vulnerability is not in KEV.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected
- 5.2.7 and earlier
Source: CISA KEV 2026.10.29, as of ; VulnCheck KEV, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.
Description
WordPress Internal Link Optimiser plugin <= 5.2.7 - Broken Access Control vulnerability
Unauthenticated Broken Access Control in Internal Link Optimiser <= 5.2.7 versions.
Source: CVE List, as of . About the data.
What to do
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.
Affected products and versions
Versions by product, as listed in the CVE record (1 product)
| Status | Versions |
|---|---|
| Affected | 5.2.7 and earlier |
Versions not listed are: unaffected.
Source: CVE List, as of . About the data.
Weakness
CWE-862, 1 CAPEC
- CWE-862: Missing Authorization
Attack patterns (CAPEC)
- CAPEC-180: Exploiting Incorrectly Configured Access Control Security Levels
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.
Timeline
| Date | Event |
|---|---|
| CVE record published |