What’s Vulnerable › Vulnerabilities

CVE-2020-13870

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-06-05 · updated 2026-06-17
• Weakness: CWE-79

Description

An issue was discovered in the Comments plugin before 1.5.5 for Craft CMS. There is stored XSS via an asset volume name.

Affected products

• verbb Comments: before 1.5.5 — fixed in 1.5.5

How to fix

Upgrade to a fixed version: verbb Comments 1.5.5. Check the vendor advisory for mitigations.

References

• https://github.com/verbb/comments/blob/craft-3/CHANGELOG.md#155---2020-05-28-critical
• https://github.com/verbb/comments/blob/craft-3/CHANGELOG.md#155---2020-05-28-critical

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