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CVE-2021-4379

21
FAUCET Score

CVE-2021-4379 describes an authorization bypass vulnerability in the WooCommerce Multi Currency plugin for WordPress, affecting versions up to and including 2.1.17. This flaw allows authenticated users, even those with subscriber-level permissions, to modify product prices due to a missing capability check in the wmc_bulk_fixed_price function. Rated 6.5 MEDIUM on the CVSS scale, it has a network attack vector and low attack complexity, leading to high integrity impact without affecting confidentiality or availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.1.18CPE matchmatch criteria
cpe:2.3:a:villatheme:woocommerce_multi_currency:*:*:*:*:*:wordpress:*:*
>= 0, <= 2.1.17CPE match
cpe:2.3:a:villatheme:curcy_-_woocommerce_multi_currency_-_currency_switcher:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
52.9%
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 64th percentile among its peer group of 21,958 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 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blog.nintechnet.com / vulnerability-fixed-in-wordpress-woocommerce-multi-currency-plugin
ExploitThird Party Advisory
codecanyon.net / item/woocommerce-multi-currency/20948446
Product
wordfence.com / threat-intel/vulnerabilities/id/e2318ae9-4115-442e-9293-a9251787c5f3
Third Party Advisory