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    CVE-2025-6497

    A vulnerability was found in HTACG tidy-html5 5.8.0. It has been rated as problematic. This issue affects the function prvTidyParseNamespace of the file src/parser.c. The manipulation leads to reachable assertion. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.

    Published:Jun 23, 2025
    Last Modified:Apr 15, 2026
    EPS:Jun 23, 2025
    EPSS Score:0.00023
    CVSS Score:3.3

    Affected Products

    Vendor
    Htacg
    Product
    Tidy

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-617 Reachable Assertion

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2025-6498 (CVSS 1.9) — A vulnerability classified as problematic has been found in HTACG tidy-html5 5.8.0. Affected is the function d…
    CVE-2025-6496 (CVSS 1.9) — A vulnerability was found in HTACG tidy-html5 5.8.0. It has been declared as problematic. This vulnerability a…
    CVE-2021-33391 (CVSS 9.8) — An issue in HTACG HTML Tidy v5.7.28 allows attacker to execute arbitrary code via the -g option of the CleanNo…
    CVE-2017-17497 (CVSS 7.5) — In Tidy 5.7.0, the prvTidyTidyMetaCharset function in clean.c allows attackers to cause a denial of service (S…
    CVE-2017-13692 (CVSS 7.5) — In Tidy 5.5.31, the IsURLCodePoint function in attrs.c allows attackers to cause a denial of service (Segmenta…
    CVE-2015-5522 (CVSS 6.8) — Heap-based buffer overflow in the ParseValue function in lexer.c in tidy before 4.9.31 allows remote attackers…
    CVE-2015-5523 (CVSS 4.3) — The ParseValue function in lexer.c in tidy before 4.9.31 allows remote attackers to cause a denial of service …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High