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CVE-2020-13869

15
FAUCET Score

CVE-2020-13869 describes a stored Cross-Site Scripting (XSS) vulnerability in the Comments plugin for Craft CMS, affecting versions prior to 1.5.6. This medium-severity flaw (CVSS 5.4) allows an authenticated attacker to inject malicious scripts via a guest name, which could lead to client-side code execution with low impact on confidentiality and integrity. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.5.5CPE matchmatch criteria
cpe:2.3:a:verbb:comments:*:*:*:*:*:craft_cms:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.54%
Probability of exploitation in next 30 days
EPSS Percentile
42.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0054 is in the 67th percentile among its peer group of 15,224 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

composerpatch availablevia ghsa
Product: verbb/commentsFixed in: 1.5.5

Vendor Advisories (1)

composerGHSA-jhhf-c849-3rh2medium

Comments plugin stored Cross-site Scripting via a guest name

May 24, 2022

References

github.com / verbb/comments/blob/craft-3/CHANGELOG.md
Release NotesThird Party Advisory