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CVE-2021-25112

31
FAUCET Score

CVE-2021-25112 describes a Reflected Cross-Site Scripting (XSS) vulnerability in the WHMCS Bridge WordPress plugin prior to version 6.4b, stemming from a lack of sanitization and escaping of the 'error' parameter in the admin dashboard. With a CVSS score of 6.1 (Medium), this vulnerability can be exploited without authentication via a low-complexity attack, requiring user interaction to achieve partial confidentiality and integrity impacts. While there is no evidence of active exploitation or Metasploit modules, a Nuclei template exists, and the CVE has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.4bCPE matchmatch criteria
cpe:2.3:a:i-plugins:whmcs_bridge:*:*:*:*:*: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
2.19%
Probability of exploitation in next 30 days
EPSS Percentile
80.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
Nuclei: CVE-2021-25112 · Feb 19, 2022
This CVE's current EPSS score of 0.0219 is in the 90th 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

plugins.trac.wordpress.org / changeset/2659751
Release NotesThird Party Advisory
wpscan.com / vulnerability/4aae2dd9-8d51-4633-91bc-ddb53ca3471c
ExploitThird Party Advisory