CVE-2020-5529HtmlUnit prior to 2.37.0 contains code execution vulnerabilities. HtmlUnit initializes Rhino engine improperly, hence a malicious…
- 8.1HighCVSS base score
- 4.7%Exploitation in 30 daysEPSS · top 8.0% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
HtmlUnit prior to 2.37.0 contains code execution vulnerabilities. HtmlUnit initializes Rhino engine improperly, hence a malicious JavScript code can execute arbitrary Java code on the application. Moreover, when embedded in Android application, Android-specific initialization of Rhino engine is done in an improper way, hence a malicious JavaScript code can execute arbitrary Java code on the application.
Timeline
ID reserved
By jpcert
- 36 days later
· 36 days later
Published
- 5 years later
· 5 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 4.7% · top 8.0% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.1.
Affected products
- affected prior to 2.37.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavennet.sourceforge.htmlunit:htmlunitGHSA-5mh9-r3rr-9597 (opens in a new tab)
References
References5
- https://github.com/HtmlUnit/htmlunit/releases/tag/2.37.0 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://jvn.jp/en/jp/JVN34535327/ (opens in a new tab)third-party-advisoryx_refsource_JVNx_transferred
- [camel-commits] 20200520 [camel] branch camel-2.25.x updated: Updating htmlunit due to CVE-2020-5529 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [debian-lts-announce] 20200815 [SECURITY] [DLA 2326-1] htmlunit security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-4584-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2020-0412 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-5mh9-r3rr-9597 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2020-5529)Record last updated .