What’s Vulnerable › Vulnerabilities

CVE-2012-0911

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 63.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2012-07-12 · updated 2026-06-16
• Weakness: CWE-502

Description

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: before 6.7; before 8.4 — fixed in 6.7, 8.4

How to fix

Upgrade to a fixed version: Tiki 6.7, 8.4. Check the vendor advisory for mitigations.

References

• http://archives.neohapsis.com/archives/bugtraq/2012-07/0020.html
• http://dev.tiki.org/item4109
• http://info.tiki.org/article190-Tiki-Wiki-CMS-Groupware-Updates-Tiki-6-7-LTS
• http://info.tiki.org/article191-Tiki-Releases-8-4
• http://osvdb.org/83534
• http://www.exploit-db.com/exploits/19573
• http://www.exploit-db.com/exploits/19630
• http://www.securityfocus.com/bid/54298
• https://exchange.xforce.ibmcloud.com/vulnerabilities/76758
• http://archives.neohapsis.com/archives/bugtraq/2012-07/0020.html
• http://dev.tiki.org/item4109
• http://info.tiki.org/article190-Tiki-Wiki-CMS-Groupware-Updates-Tiki-6-7-LTS

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