Sandbox Bypass

published 2022-05-01 4 y ago modified 2026-06-17 4 mo ago also GHSA-77m7-9wvw-87fx , EUVD-2022-2943

cvss: 8.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.3%; EPSS 1.3% chance of exploitation in 30 days, percentile 71%
public exploits: 0; none known

All versions of package jailed are vulnerable to Sandbox Bypass via an exported alert() method which can access the main application. Exported methods are stored in the application.remote object.

Exploit prediction

1.33% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

snyk.io https://snyk.io/vuln/SNYK-JS-JAILED-2391490 referenced PoC, tagged "exploit" by a source, unverified
snyk.io https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-2441254 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:P
CNA	3.1	8.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P
GitHub	3.1	8.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

Affected packages

ecosystem	package	affected	fixed in
npm	jailed	<=0.3.1	no fix listed

Affected products

n/a jailed

References

snyk.io /vuln/SNYK-JS-JAILED-2391490
web, exploit, third-party-advisory
snyk.io /vuln/SNYK-JAVA-ORGWEBJARSBOWER-2441254
web, exploit, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2022-23923
advisory
github.com /asvd/jailed
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary