WordPress Konsept theme <= 1.9 - PHP Object Injection vulnerability

published 2026-06-17 4 mo ago modified 2026-10-26 14 d ago also EUVD-2026-37687

cvss: 8.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits: 0; none known

Unauthenticated PHP Object Injection in Konsept <= 1.9 versions.

Patch / fix

fixed in 1

Elated-Themes Konsept 2.0

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 4 mo ago (2026-06-17)

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Elated-Themes Konsept

Classification

Weakness

CWE-502 Deserialization of Untrusted Data

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/wordpress/theme/konsept/vulnerability/wordpress-konsept-theme-1-9-php-object-injection-vulnerability
vdb-entry

Sources

CVE List CVE-2026-39556
NVD CVE-2026-39556

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary