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CVE-2021-24856

18
FAUCET Score

CVE-2021-24856 describes a Cross-Site Scripting (XSS) vulnerability in the Shared Files WordPress plugin prior to version 1.6.61, affecting tammersoft shared_files. This medium-severity vulnerability, rated 4.8 CVSS, allows high-privilege users to inject malicious scripts through unsanitized Download Counter Text settings, even when unfiltered_html is disabled, potentially leading to client-side attacks with low impact on confidentiality and integrity. There is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit or ExploitDB. Community discussion and media coverage for this CVE are minimal, indicating low public attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.6.61CPE matchmatch criteria
cpe:2.3:a:tammersoft:shared_files:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

4.8MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.7
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.65%
Probability of exploitation in next 30 days
EPSS Percentile
47.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0065 is in the 83rd percentile among its peer group of 4,937 CVEs.

Social Chatter

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

Remediation records are not available for this CVE.

References

mikadmin.fr / tech/XSS-Stored-Shared-Files-a837703ad010d111be11ffdf478aa6114F0lK656bV.pdf
ExploitThird Party Advisory
wpscan.com / vulnerability/8fd483fb-d399-4b4f-b4ef-bbfad1b5cf1b
ExploitThird Party Advisory