CyberRota Analysis
AI-GeneratedJustHTML versions prior to 1.18.0 are vulnerable to multiple denial-of-service issues stemming from improper handling of CSS selectors and linkification, which can lead to excessive CPU or memory consumption when processing attacker-controlled input. Applications that utilize functions like query(), matches(), or selector-based transformations with untrusted documents are particularly at risk. Organizations using JustHTML should prioritize updating to the latest version to mitigate these availability concerns.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
justhtml before 1.18.0 contains multiple low-severity denial-of-service issues in CSS selector handling and linkification. Applications that evaluate attacker-controlled selector strings (via query(), matches(), or selector-based transforms), run selector matching over very large untrusted documents, construct DOM trees from untrusted structure, or enable linkification over attacker-controlled text may consume disproportionate CPU or memory. Triggers include oversized selectors, large selector lists, oversized compound selectors, long combinator chains, deeply nested functional pseudo-classes, repeated token/positional matching, cyclic DOM graphs causing non-terminating traversal, and punctuation-heavy or trailing-bracket linkification input. These are availability-only concerns and do not by themselves allow script execution, data disclosure, or sanitizer bypass. Default JustHTML(sanitize=True) usage is not expected to be exposed, since selectors are normally supplied by application code.