CVE-2020-29254

HIGH

TikiWiki 21.2 - Cross-Site Request Forgery in Template Editor

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2020-29254. PoCs published by S1lkys.

AI-analyzed exploit summary The repository provides a technical analysis of CVE-2020-29254, detailing a CSRF vulnerability in TikiWiki 21.2 that allows template editing without CSRF protection. It also describes how this can be combined with path traversal to leak sensitive files like database credentials.

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.

Exploits (1)

nomisec WRITEUP
by S1lkys · poc
https://github.com/S1lkys/CVE-2020-29254

The repository provides a technical analysis of CVE-2020-29254, detailing a CSRF vulnerability in TikiWiki 21.2 that allows template editing without CSRF protection. It also describes how this can be combined with path traversal to leak sensitive files like database credentials.

Classification
Writeup 90%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: TikiWiki 21.2
No auth needed
Prerequisites: User with template editing permissions · Victim to visit a malicious URL
devstral-2 · analyzed Feb 19, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit, Third Party Advisory x_refsource_misc
https://youtu.be/Uc3sRBitu50
Exploit, Third Party Advisory x_refsource_misc
https://github.com/S1lkys/CVE-2020-29254

Scores

CVSS v3 8.8
EPSS 0.0150
EPSS Percentile 71.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-352
Status published
Products (1)
tiki/tikiwiki_cms\/groupware 21.2
Published Dec 11, 2020
Tracked Since Feb 18, 2026