HtacgCVEs & Vulnerabilities

6 CVEs affecting Htacg products, tracked from the National Vulnerability Database, with CVSS/EPSS scores and exploitation status.

Most Affected Products

tidy 6
CVE-2025-6498MEDIUM

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.

23 Jun 2025
5.5
CVSS
CVE-2021-33391CRITICAL

An issue in HTACG HTML Tidy v5.7.28 allows attacker to execute arbitrary code via the -g option of the CleanNode() function in gdoc.c.

17 Feb 2023
9.8
CVSS
CVE-2017-17497HIGH

In Tidy 5.7.0, the prvTidyTidyMetaCharset function in clean.c allows attackers to cause a denial of service (Segmentation Fault), because the currentNode variable in the "children of the head" processing feature is modified in the loop without validating the new value.

11 Dec 2017
7.5
CVSS
CVE-2017-13692HIGH

In Tidy 5.5.31, the IsURLCodePoint function in attrs.c allows attackers to cause a denial of service (Segmentation Fault), as demonstrated by an invalid ISALNUM argument.

25 Aug 2017
7.5
CVSS
CVE-2015-5523MEDIUM

The ParseValue function in lexer.c in tidy before 4.9.31 allows remote attackers to cause a denial of service (crash) via vectors involving multiple whitespace characters before an empty href, which triggers a large memory allocation.

11 Aug 2015
4.3
CVSS
CVE-2015-5522MEDIUM

Heap-based buffer overflow in the ParseValue function in lexer.c in tidy before 4.9.31 allows remote attackers to cause a denial of service (crash) via vectors involving a command character in an href.

11 Aug 2015
6.8
CVSS
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