CVE-2007-5423

CVE-2007-5423 is a high-severity vulnerability in Tiki Tikiwiki Cms/groupware with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 77% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-94.

Key facts

• Severity: High (CVSS 2.0 base score 7.5)
• EPSS exploit prediction: 77% (99th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-94
• Affected product: Tiki Tikiwiki Cms/groupware
• Published: 2007-10-12
• Last modified: 2026-06-16

Description

tiki-graph_formula.php in TikiWiki 1.9.8 allows remote attackers to execute arbitrary code via PHP sequences in the f array parameter, which are processed by create_function.

Frequently asked questions

What is CVE-2007-5423?

tiki-graph_formula.php in TikiWiki 1.9.8 allows remote attackers to execute arbitrary code via PHP sequences in the f array parameter, which are processed by create_function.

How severe is CVE-2007-5423?

CVE-2007-5423 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2007-5423 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 77% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-5423?

CVE-2007-5423 affects Tiki Tikiwiki Cms/groupware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-5423?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2007-5423 published?

CVE-2007-5423 was published on 2007-10-12 and last updated on 2026-06-16.

References

• http://bugs.gentoo.org/show_bug.cgi?id=195503
• http://osvdb.org/40478
• http://secunia.com/advisories/27190
• http://secunia.com/advisories/27344
• http://securityreason.com/securityalert/3216
• http://securityvulns.ru/Sdocument162.html
• http://sourceforge.net/forum/forum.php?forum_id=744898
• http://sourceforge.net/project/shownotes.php?release_id=546283&group_id=64258
• http://www.gentoo.org/security/en/glsa/glsa-200710-21.xml
• http://www.securityfocus.com/archive/1/482006/100/0/threaded
• http://www.securityfocus.com/archive/1/482128/100/0/threaded
• http://www.securityfocus.com/bid/26006
• http://www.vupen.com/english/advisories/2007/3492
• https://exchange.xforce.ibmcloud.com/vulnerabilities/37076
• https://www.exploit-db.com/exploits/4509

Affected products (1)

• cpe:2.3:a:tiki:tikiwiki_cms\/groupware:1.9.8:*:*:*:*:*:*:*

More vulnerabilities in Tiki Tikiwiki Cms/groupware

• CVE-2008-3653 — Critical (CVSS 10.0): Multiple unspecified vulnerabilities in TikiWiki CMS/Groupware before 2.0 have unknown impact and attack vectors.
• CVE-2007-6529 — Critical (CVSS 10.0): Multiple unspecified vulnerabilities in TikiWiki before 1.9.9 have unknown impact and attack vectors involving (1)…
• CVE-2025-34111 — Critical (CVSS 9.8): An unauthenticated arbitrary file upload vulnerability exists in Tiki Wiki CMS Groupware version 15.1 and earlier via…
• CVE-2010-4239 — Critical (CVSS 9.8): Tiki Wiki CMS Groupware 5.2 has Local File Inclusion
• CVE-2012-0911 — Critical (CVSS 9.8): TikiWiki CMS/Groupware before 6.7 LTS and before 8.4 allows remote attackers to execute arbitrary PHP code via a…
• CVE-2020-29254 — High (CVSS 8.8): TikiWiki 21.2 allows templates to be edited without CSRF protection. This could allow an unauthenticated, remote…

All CVEs affecting Tiki Tikiwiki Cms/groupware →

Other CWE-94 (Code Injection) vulnerabilities

• CVE-2026-57624 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Blocksy Companion Pro <= 2.1.46 versions.
• CVE-2026-10134 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 allows an attacker to read every secret available to the Langflow process, read…
• CVE-2026-53576 — Critical (CVSS 10.0): Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, the authentication filter…
• CVE-2026-10561 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined…
• CVE-2026-25470 — Critical (CVSS 10.0): Improper Control of Generation of Code ('Code Injection') vulnerability in ACPT ACPT (Pro) - Custom Post Types Plugin…
• CVE-2026-48836 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Easy Invoice <= 2.1.19 versions.

Browse all CWE-94 (Code Injection) vulnerabilities →