CVE-2021-33391

CRITICAL

HTACG HTML Tidy 5.7.28 - Use-After-Free via CleanNode() Function

Title source: llm
STIX 2.1

Description

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.

References (1)

Core 1
Core References

Scores

CVSS v3 9.8
EPSS 0.0113
EPSS Percentile 62.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-416
Status published
Products (1)
htacg/tidy 5.7.28
Published Feb 17, 2023
Tracked Since Feb 18, 2026