CVE-2026-83492: extend themes kubio ai website builder Improper Input Validation
CVSS: 6.9v4.0MediumDeferred
Published 31-08-2026Last modified 31-08-2026
Vulnerability summary
CVE-2026-83492 is a medium (CVSS 6.9) Improper Input Validation vulnerability in extend themes kubio ai website builder. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 34% of scored vulnerabilities.
CVSS score
6.9/10
010
Medium · v4.0 (CVE.org)EPSS score
0.41%
0%100%
Low · +0.17 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 31-08-2026PublishedVulnerability first disclosed.
- 31-08-2026Last modifiedVulnerability information updated.
Description
Improper input validation vulnerability in Extend Themes Kubio AI Website Builder. This issue affects Kubio AI Website Builder: before 2.9.1.
CVSS metrics
3 scores · 3 sources · 2 versionsMedium 6.9Preferred score · CVE.org (CNA)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NSourcesAll 2 agree
- NVDNIST6.9MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Medium 4.9Preferred score · wordfence (Source)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:HSourcesSingle source
EPSS trend
Probability
0.41%
Chance of exploitation in the next 30 days
Percentile
34%
Versus all other CVEs
30-day change
+0.17 pp
From 0.24% on 21-09-2026
21-09-202621-10-2026
EPSS score0.41%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Extend themes1 product
- kubio ai website builder< 2.9.1
Wordpress1 product
- kubio< 2.9.1
2 vendors · 2 products