CVE-2012-0911: Tiki Tikiwiki Cms/groupware

Critical severity, CVSS 9.8. EPSS: 63% chance of exploitation in the next 30 days.

TikiWiki CMS/Groupware before 6.7 LTS and before 8.4 allows remote attackers to execute arbitrary PHP code via a crafted serialized object in the (1) cookieName to lib/banners/bannerlib.php; (2) printpages or (3) printstructures parameter to (a) tiki-print_multi_pages.php or (b) tiki-print_pages.php; or (4) sendpages, (5) sendstructures, or (6) sendarticles parameter to tiki-send_objects.php, which is not properly handled when processed by the unserialize function.

Affected products

• Tiki Tikiwiki Cms/groupware: before 6.7 (fixed in 6.7); before 8.4 (fixed in 8.4)

Published 2012-07-12. Last modified 2026-06-16.