CVE-2022-28366: antisamy_project antisamy
Vulnerability summary
CVE-2022-28366 is a high (CVSS 7.5) vulnerability in antisamy_project antisamy. EPSS estimates a 2.17% chance of exploitation in the next 30 days, higher than 81.9% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 0 · Duplicates 1Timeline
- 21-04-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
Certain Neko-related HTML parsers allow a denial of service via crafted Processing Instruction (PI) input that causes excessive heap memory consumption. In particular, this issue exists in HtmlUnit-Neko through 2.26, and is fixed in 2.27. This issue also exists in CyberNeko HTML through 1.9.22 (also affecting OWASP AntiSamy before 1.6.6), but 1.9.22 is the last version of CyberNeko HTML. NOTE: this may be related to CVE-2022-24839.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · MavenEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
2.17%
Chance of exploitation in the next 30 days
Percentile
82%
Versus all other CVEs
30-day change
+0.04 pp
From 2.13% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Antisamy_project1 product
- antisamy< 1.6.6
Cyberneko_html_project1 product
- cyberneko_html≤ 1.9.22
Debian1 product
- libowasp-antisamy-javaAll versions (No fix recorded) | < 1.7.4-1
Htmlunit1 product
- htmlunit< 2.27
Net.sourceforge.htmlunit1 product
- neko-htmlunit< 2.27
Ubuntu1 product
- libowasp-antisamy-javaAll versions (No fix recorded)
6 vendors · 6 products
References
10 links- github.com/nahsra/antisamy/releases/tag/v1.6.6X Refsource MISCREPORTWEBRelease NotesThird Party Advisory
- search.maven.org/artifact/net.sourceforge.htmlunit/neko-htmlunitX Refsource MISCREPORTWEBRelease NotesThird Party Advisory
- sourceforge.net/projects/htmlunit/files/htmlunit/2.27/X Refsource MISCREPORTRelease NotesThird Party Advisory