CVE-2025-6498: tidy — Exploit

Description

A vulnerability classified as problematic has been found in HTACG tidy-html5 5.8.0. Affected is the function defaultAlloc of the file src/alloc.c. The manipulation leads to memory leak. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.

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CVSS v3.1 Score

3.3

LOW

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Weakness Type (CWE)

CWE-401 CWE-401

CWE-404 CWE-404

Affected Products

Vendor	Product	Versions
htacg	tidy	All

References

Exploits

https://github.com/htacg/tidy-html5/issues/1152 https://github.com/user-attachments/files/20438303/tidy-html5_crash_3.txt https://github.com/htacg/tidy-html5/issues/1152

Other References

https://vuldb.com/?ctiid.313614 https://vuldb.com/?id.313614 https://vuldb.com/?submit.601009

Frequently Asked Questions

What is CVE-2025-6498? +

A vulnerability classified as problematic has been found in HTACG tidy-html5 5.8.0. Affected is the function defaultAlloc of the file src/alloc.c. The manipulation leads to memory leak. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. It has a CVSS v3.1 base score of 3.3 (LOW).

How severe is CVE-2025-6498? +

CVE-2025-6498 has a CVSS v3.1 score of 3.3 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.

What products are affected by CVE-2025-6498? +

CVE-2025-6498 affects products from htacg, specifically: tidy. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-6498? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2025-6498