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CVE-2021-25039

22
FAUCET Score

CVE-2021-25039 describes a Reflected Cross-Site Scripting (XSS) vulnerability in the WordPress Multisite Content Copier/Updater plugin prior to version 2.1.0. This flaw arises from insufficient sanitization and escaping of the wmcc_content_type, wmcc_source_blog, and wmcc_record_per_page parameters before outputting them. Rated as MEDIUM severity with a CVSS score of 6.1, it requires user interaction (UI:R) and could lead to limited impact on confidentiality and integrity (C:L/I:L). There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.1.0CPE matchmatch criteria
cpe:2.3:a:obtaininfotech:multisite_content_copier\/updater:*:*:*:*:*: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
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
52.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 60th percentile among its peer group of 26,221 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

wpscan.com / vulnerability/c92eb2bf-0a5d-40b9-b0be-1820e7b9bebb
ExploitThird Party Advisory