5.4

CVE-2025-8487: extendthemes kubio ai page builder Missing Authorization

CVSS: 5.4v3.1MediumDeferred
Published 19-09-2025Last modified 08-04-2026
Open JSON

Vulnerability summary

CVE-2025-8487 is a medium (CVSS 5.4) Missing Authorization vulnerability in extendthemes kubio ai page builder. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 17.8% of scored vulnerabilities. Fixed in 2.6.5.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.27%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 19-09-2025
    PublishedVulnerability first disclosed.
  2. 08-04-2026
    Last modifiedVulnerability information updated.

Description

The Kubio AI Page Builder plugin for WordPress is vulnerable to unauthorized plugin installation due to a missing capability check on the kubio-image-hub-install-plugin AJAX action in all versions up to, and including, 2.6.3. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install the Image Hub plugin.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

18%

Versus all other CVEs

30-day change

+0.01 pp

From 0.26% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.27%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Extendthemes1 product
Wordpress1 product
  • kubio≤ 2.6.3 (fixed in 2.6.5)

2 vendors · 2 products

References

4 links