XSS in Rails Actionview

CVE-2020-5267

In ActionView before versions 6.0.2.2 and 5.2.4.2, there is a possible XSS vulnerability in ActionView's JavaScript literal escape helpers. Views that use the `j` or `escape_javascript` methods may be susceptible to XSS attacks. The issue…

EPSS: 0.009 (75.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-5267?
CVE-2020-5267 is a medium-severity vulnerability in Rails Actionview, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 4.0/10. Published 2020-03-19.
How severe is CVE-2020-5267?
Medium severity. CVSS v3 base score is 4.0 out of 10.
Is CVE-2020-5267 known to be exploited?
8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.