CVE-2020-29254: TikiWiki 21.2 allows templates to be edited without CSRF protection. This could allow an unauthenticated, remote attacker to conduct a cross-site requ...

Description

TikiWiki 21.2 allows templates to be edited without CSRF protection. This could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack and perform arbitrary actions on an affected system. The vulnerability is due to insufficient CSRF protections for the web-based management interface of the affected system. An attacker could exploit this vulnerability by persuading a user of the interface to follow a maliciously crafted link. A successful exploit could allow the attacker to perform arbitrary actions on an affected system with the privileges of the user. These action include allowing attackers to submit their own code through an authenticated user resulting in local file Inclusion. If an authenticated user who is able to edit TikiWiki templates visits an malicious website, template code can be edited.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

1.50%

71.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-352

Affected Software

Vendor	Product	Versions
Tiki	Tikiwiki Cms\/Groupware	21.2

References

https://github.com/S1lkys/CVE-2020-29254Exploit, Third Party Advisory
https://github.com/S1lkys/CVE-2020-29254/blob/main/Tiki-Wiki%2021.2%20by%20Maximilian%20Barz.pdfExploit, Third Party Advisory
https://youtu.be/Uc3sRBitu50Exploit, Third Party Advisory
https://github.com/S1lkys/CVE-2020-29254Exploit, Third Party Advisory
https://github.com/S1lkys/CVE-2020-29254/blob/main/Tiki-Wiki%2021.2%20by%20Maximilian%20Barz.pdfExploit, Third Party Advisory
https://youtu.be/Uc3sRBitu50Exploit, Third Party Advisory

Timeline

Published: Dec 11, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-29254?

TikiWiki 21.2 allows templates to be edited without CSRF protection. This could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack and perform arbitrary actions on an affected system. The vulnerability is due to insufficient CSRF protections for the web-based management interface of the affected system. An attacker could exploit this vulnerability by persuading a user of the interface to follow a maliciously crafted link. A successful exploit could allow the attacker to perform arbitrary actions on an affected system with the privileges of the user. These action include allowing attackers to submit their own code through an authenticated user resulting in local file Inclusion. If an authenticated user who is able to edit TikiWiki templates visits an malicious website, template code can be edited.

How severe is CVE-2020-29254?

CVE-2020-29254 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.50% probability of exploitation in the next 30 days.

How do I fix CVE-2020-29254?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2020

View all 2020CVEs →