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.
Alaev SEO Tools Extension Popup UI popup.html addDiv cross site scripting
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV
N L N N P N L N 2.1 .0026 18.3 —
AFFECTED
Product Versions Fixed
SEO Tools Extension 1.0.0 – —
TIMELINE
Aug 16 EXPLOIT PUBLISHED — CVE-2026-19988 (Alaev SEO Tools Extension). Public exploit reference added.
Aug 16 Reserved by VulDB
Aug 17 Published (CNA: VulDB)
Aug 18 EXPLOIT PUBLISHED — CVE-2026-19988 (Alaev SEO Tools Extension). Public exploit reference added.
Description
A vulnerability was detected in Alaev SEO Tools Extension up to 1.0.10 on Chrome. This impacts the function addDiv of the file src/popup.html of the component Popup UI. Performing a manipulation results in basic cross site scripting. The attack can be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Lifecycle
Complete event history — 4 events, chronological
| Date | Event | Detail |
|---|
| August 16, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-19988 (Alaev SEO Tools Extension). Public exploit reference added. |
| August 16, 2026 | Reserved | Reserved by VulDB |
| August 17, 2026 | Published | Published (CNA: VulDB) |
| August 18, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-19988 (Alaev SEO Tools Extension). Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Alaev | SEO Tools Extension | — | 1.0.0 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-19988 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.