Medium severity · published Jul 10, 2026
CVE-2026-13239
WissKI - Critical - Access bypass - SA-CONTRIB-2026-059
6.5
CVSS
0.3%
EPSS
No
On KEV
Description
Missing Authorization vulnerability in Drupal WissKI allows Forceful Browsing. This issue affects WissKI versions: from 0.0.0 to 4.2.0.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 18% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DR
Drupal · Drupal
0.0.0 before 4.2.0 · source: vendor
WI
Wisski · Wiss-ki
before 4.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-13239
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-13239
Vendor Advisory
https://www.drupal.org/sa-contrib-2026-059
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