CVE-2020-5267
CVE-2020-5267 is a medium-severity vulnerability in Rubyonrails Actionview with a CVSS 3.x base score of 4.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 4.0)
- CVSS v2: 3.5
- EPSS exploit prediction: 2% (72nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Rubyonrails Actionview
- Published:
- Last modified:
Description
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 is fixed in versions 6.0.2.2 and 5.2.4.2.
Frequently asked questions
- What is 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 is fixed in versions 6.0.2.2 and 5.2.4.2.
- How severe is CVE-2020-5267?
- CVE-2020-5267 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2020-5267 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-5267?
- CVE-2020-5267 primarily affects Rubyonrails Actionview. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2020-5267?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-5267 published?
- CVE-2020-5267 was published on 2020-03-19 and last updated on 2026-06-17.
References
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00019.html
- http://www.openwall.com/lists/oss-security/2020/03/19/1
- https://github.com/rails/rails/commit/033a738817abd6e446e1b320cb7d1a5c15224e9a
- https://github.com/rails/rails/security/advisories/GHSA-65cv-r6x7-79hv
- https://lists.debian.org/debian-lts-announce/2020/03/msg00022.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XJ7NUWXAEVRQCROIIBV4C6WXO6IR3KSB/
Affected products (4)
- cpe:2.3:a:rubyonrails:actionview:*:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
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