VulnerabilityModified
CVE-2020-8823
htmlfile in lib/transport/htmlfile.js in SockJS before 0.3.0 is vulnerable to Reflected XSS via the /htmlfile c (aka callback) parameter.
MEDIUM 6.1EPSS 1.89%
Does this matter?
Lower severity and a low EPSS score (1.89%). Track it; it rarely justifies an emergency change on its own.
Description
htmlfile in lib/transport/htmlfile.js in SockJS before 0.3.0 is vulnerable to Reflected XSS via the /htmlfile c (aka callback) parameter.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 1.89% probability · 79th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- sockjs project/sockjs
- Source
- cve@mitre.org
EPSS 1.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/theyiyibest/Reflected-XSS-on-SockJSExploit, Patch, Third Party Advisory
- https://github.com/theyiyibest/Reflected-XSS-on-SockJS/issues/1Third Party Advisory
- https://snyk.io/vuln/SNYK-JS-SOCKJS-548397Third Party Advisory
- https://www.sockjs.orgVendor Advisory
- https://github.com/theyiyibest/Reflected-XSS-on-SockJSExploit, Patch, Third Party Advisory
- https://github.com/theyiyibest/Reflected-XSS-on-SockJS/issues/1Third Party Advisory
- https://snyk.io/vuln/SNYK-JS-SOCKJS-548397Third Party Advisory
- https://www.sockjs.orgVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.