Medium severity · published Mar 25, 2026
CVE-2026-3211
Theme Negotiation by Rules - Moderately critical - Cross-site request forgery - SA-CONTRIB-2026-012
4.3
CVSS
0.1%
EPSS
No
On KEV
Description
Cross-Site Request Forgery (CSRF) vulnerability in Drupal Theme Negotiation by Rules allows Cross Site Request Forgery.This issue affects Theme Negotiation by Rules: from 0.0.0 before 1.2.1.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 1% 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 1.2.1 · source: vendor
TN
Theme Negotiation BY Rules · Webikon
before 1.2.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-3211
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-3211
Vendor Advisory
https://www.drupal.org/sa-contrib-2026-012
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