Vulnerability in Antisamy Project
CVE-2022-28366
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.021 (81.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: -0.000
Affected products
Public proof-of-concept exploits
References
- github.com/nahsra/antisamy/releases/tag/v1.6.6 (Third Party Advisory, Release Notes)
- search.maven.org/artifact/net.sourceforge.htmlunit/neko-htmlunit (Third Party Advisory, Release Notes)
- sourceforge.net/projects/htmlunit/files/htmlunit/2.27/ (Third Party Advisory, Release Notes)
Frequently asked questions
- What is CVE-2022-28366?
- CVE-2022-28366 is a high-severity vulnerability in Antisamy Project. CVSS score: 7.5/10. Published 2022-04-21.
- How severe is CVE-2022-28366?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2022-28366 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.