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CVE-2021-4448

41
FAUCET Score

CVE-2021-4448 describes an authorization bypass vulnerability in the Kaswara Modern VC Addons plugin for WordPress, affecting versions up to and including 3.0.1. This flaw allows unauthenticated attackers to execute unauthorized actions like data import, arbitrary file uploads, and file deletion due to insufficient capability checks on AJAX actions. With a CVSS score of 9.8 (CRITICAL), the vulnerability is easily exploitable over the network with low complexity, leading to complete compromise of confidentiality, integrity, and availability. While not listed in CISA KEV, Nuclei templates exist, and the vulnerability has garnered significant community discussion, indicating potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.0.1CPE matchmatch criteria
cpe:2.3:a:kaswara_project:kaswara:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

7.3HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.38%
Probability of exploitation in next 30 days
EPSS Percentile
69.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2021-4448 · Dec 30, 2025
This CVE's current EPSS score of 0.0138 is in the 56th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

codecanyon.net / item/kaswara-modern-visual-composer-addons/19341477
Not Applicable
wordfence.com / threat-intel/vulnerabilities/id/3bf76527-9a11-4755-992c-02fbc1a79bae
Third Party Advisory