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CVE-2021-24495

31
FAUCET Score

CVE-2021-24495 describes a reflected Cross-Site Scripting (XSS) vulnerability in the Marmoset Viewer WordPress plugin prior to version 1.9.3. This flaw arises from insufficient sanitization of the 'id' parameter before outputting it to the page. With a CVSS score of 6.1 (Medium), this vulnerability can be exploited remotely with low complexity, requiring user interaction, and could lead to information disclosure and limited integrity impact. While no active exploitation or public Metasploit/ExploitDB modules are reported, Nuclei templates exist, and there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.9.3CPE matchmatch criteria
cpe:2.3:a:marmoset:marmoset_viewer:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.34%
Probability of exploitation in next 30 days
EPSS Percentile
87.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
Nuclei: CVE-2021-24495 · Jun 30, 2021
This CVE's current EPSS score of 0.0334 is in the 94th percentile among its peer group of 26,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

johnjhacking.com / blog/cve-2021-24495-improper-neutralization-of-input-during-web-page-generation-on-id-parameter-in-wordpress-marmoset-viewer-plugin-versions-1.9.3-leads-to-reflected-cross-site-scripting
ExploitThird Party Advisory
wpscan.com / vulnerability/d11b79a3-f762-49ab-b7c8-3174624d7638
ExploitThird Party Advisory