Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Unknown LWS Optimize — LWS Optimize < 3.4 - Subscriber+ Cache Deletion
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L L N U N N L 4.3 .0019 9.5 —
AFFECTED
Product Versions Fixed
LWS Optimize unspecified —
TIMELINE
Jul 17 Reserved by WPScan
Aug 2 Published (CNA: WPScan)
Aug 3 EXPLOIT PUBLISHED — CVE-2026-16042 (Unknown LWS Optimize). Public exploit reference added.
Description
The LWS Optimize WordPress plugin before 3.4 does not perform a capability check on its cache-clearing actions, allowing any authenticated user, including Subscribers, to flush the site's caches and force repeated cache rebuilds.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| July 17, 2026 | Reserved | Reserved by WPScan |
| August 2, 2026 | Published | Published (CNA: WPScan) |
| August 3, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-16042 (Unknown LWS Optimize). Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Unknown | LWS Optimize | — | — | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-16042 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.