CVE-2025-6496
HTACG tidy-html5 parser.c InsertNodeAsParent null pointer dereference
- State
- Published
- Severity
- 4.8 Medium
- Published
- Jun 23, 2025
- Updated
- Jun 23, 2025
- Reserved
- Jun 22, 2025
Description
A vulnerability was found in HTACG tidy-html5 5.8.0. It has been declared as problematic. This vulnerability affects the function InsertNodeAsParent of the file src/parser.c. The manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 3.3 Low | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 3.3 Low | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 1.7 Low | AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
tidy-html5HTACG |
|
References
- VDB-313612 | HTACG tidy-html5 parser.c InsertNodeAsParent null pointer dereferencevdb-entrytechnical-description
- VDB-313612 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #601007 | htacg tidy-html5 tidy-html5 5.8.0 (commit d08ddc2) NULL Pointer Dereferencethird-party-advisory
- https://github.com/htacg/tidy-html5/issues/1141issue-tracking
- https://github.com/user-attachments/files/19652942/tidy-html5_crash.txtexploit
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