Vulnerability Description
Kirby is a content management system. In Kirby CMS versions 3.5.5 and 3.5.6, the Panel's `ListItem` component (used in the pages and files section for example) displayed HTML in page titles as it is. This could be used for cross-site scripting (XSS) attacks. Malicious authenticated Panel users can escalate their privileges if they get access to the Panel session of an admin user. Visitors without Panel access can use the attack vector if the site allows changing site data from a frontend form. Kirby 3.5.7 patches the vulnerability. As a partial workaround, site administrators can protect against attacks from visitors without Panel access by validating or sanitizing provided data from the frontend form.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Getkirby | Kirby | < 3.5.7 |
Related Weaknesses (CWE)
References
- https://github.com/getkirby/kirby/releases/tag/3.5.7PatchRelease NotesThird Party Advisory
- https://github.com/getkirby/kirby/security/advisories/GHSA-2f2w-349x-vrqmPatchRelease NotesThird Party Advisory
- https://github.com/getkirby/kirby/releases/tag/3.5.7PatchRelease NotesThird Party Advisory
- https://github.com/getkirby/kirby/security/advisories/GHSA-2f2w-349x-vrqmPatchRelease NotesThird Party Advisory
FAQ
What is CVE-2021-32735?
CVE-2021-32735 is a vulnerability with a CVSS score of 7.1 (HIGH). Kirby is a content management system. In Kirby CMS versions 3.5.5 and 3.5.6, the Panel's `ListItem` component (used in the pages and files section for example) displayed HTML in page titles as it is. ...
How severe is CVE-2021-32735?
CVE-2021-32735 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-32735?
Check the references section above for vendor advisories and patch information. Affected products include: Getkirby Kirby.