Description
Tiptap for PHP before version 2.1.1 contains an input validation vulnerability that allows authenticated attackers to cause a denial of service by submitting Tiptap JSON with the attrs.href field set to an array instead of a string, causing an unhandled TypeError in the Link::isAllowedUri() function when passed to preg_match(). Attackers can persist malformed JSON records that permanently crash the server-side HTML rendering pipeline for all subsequent viewers of that record until the database entry is manually repaired.
CVSS breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality (Vulnerable System)
None
Integrity (Vulnerable System)
None
Availability (Vulnerable System)
High
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- ueberdosis / tiptap-php0 – 2.1.1
References
- PATCHhttps://github.com/ueberdosis/tiptap-php/releases/tag/2.1.1
- PATCHhttps://github.com/ueberdosis/tiptap-php/pull/94
- PATCHhttps://github.com/ueberdosis/tiptap-php/commit/74bfb7be1c8c6102b240f3879b7f984a6ab87b97
- VENDOR_ADVISORYhttps://www.vulncheck.com/advisories/tiptap-for-php-dos-via-malformed-href-attribute