Tiki before 21.2 allows XSS because [\s\/"\'] is not properly considered in lib/core/TikiFilter/PreventXss.php.
Priority LOW 28CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
Tiki before 21.2 allows XSS because [\s\/"\'] is not properly considered in lib/core/TikiFilter/PreventXss.php.
Why it matters now
EPSS 0.00685 52nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-16131
- 2026-10-03 Alias added: GHSA-f4g3-g5f8-wrw6
References
More Tiki Wiki Tiki vulnerabilities
- TI-2023-09004 Tiki before 24.1, when the Spreadsheets feature is enabled, allows lib/sheet/grid.php PHP… CVSS 3.1HIGH 8.8
- TI-2023-09005 Tiki before 24.2 allows lib/importer/tikiimporter_blog_wordpress.php PHP Object Injection… CVSS 3.1HIGH 7.2
- TI-2020-12522 tiki-login.php in Tiki before 21.2 sets the admin password to a blank value after 50 invalid login attempts. CVSS 3.1CRITICAL 9.8
- TI-2024-31297 A Reflected Cross-Site Scripting (XSS) vulnerability exists in the POST request data… CVSS 3.1MEDIUM 5.4
- TI-2024-31296 A Cross-Site Scripting (XSS) vulnerability exists in the page parameter of… CVSS 3.1MEDIUM 5.4
- TI-2024-34430 Tiki through 27.0 allows users who have certain permissions to insert a "Modules" (aka… CVSS 3.1MEDIUM 4.8
Sources
- CVE-2020-16131 · CVE Program
- CVE-2020-16131 · NVD
- FIRST EPSS
- GHSA-f4g3-g5f8-wrw6 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences