How severe is CVE-2011-4455?

CVE-2011-4455 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2011-4455 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-4455?

CVE-2011-4455 affects Tiki. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-4455?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-4455 published?

CVE-2011-4455 was published on 2019-11-20 and last updated on 2026-06-16.

CVE-2011-4455

CVE-2011-4455 is a medium-severity vulnerability in Tiki with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Tiki
Published: 2019-11-20
Last modified: 2026-06-16

Description

Multiple cross-site scripting vulnerabilities in Tiki 7.2 and earlier allow remote attackers to inject arbitrary web script or HTML via the path info to (1) tiki-admin_system.php, (2) tiki-pagehistory.php, (3) tiki-removepage.php, or (4) tiki-rename_page.php.

Frequently asked questions

What is CVE-2011-4455?: Multiple cross-site scripting vulnerabilities in Tiki 7.2 and earlier allow remote attackers to inject arbitrary web script or HTML via the path info to (1) tiki-admin_system.php, (2) tiki-pagehistory.php, (3) tiki-removepage.php, or (4) tiki-rename_page.php.
How severe is CVE-2011-4455?: CVE-2011-4455 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2011-4455 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-4455?: CVE-2011-4455 affects Tiki. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-4455?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-4455 published?: CVE-2011-4455 was published on 2019-11-20 and last updated on 2026-06-16.

References

https://packetstormsecurity.com/files/107082/Tiki-Wiki-CMS-Groupware-Cross-Site-Scripting.html

Affected products (1)

cpe:2.3:a:tiki:tiki:*:*:*:*:*:*:*:*

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