TI-2021-07390 Aliases CVE-2021-25112 GHSA-pv99-qp9p-g563

WHMCS Bridge < 6.4b - Reflected Cross-Site Scripting (XSS)

LOW 31CWE-79Published 2022-02-28 · Updated 2024-08-03

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

The WHMCS Bridge WordPress plugin before 6.4b does not sanitise and escape the error parameter before outputting it back in admin dashboard, leading to a Reflected Cross-Site Scripting

Why it matters now

EPSS 0.02187 82nd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed WHMCS Bridge (Unknown): 6.4b

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Unknown	WHMCS Bridge	6.4b to before 6.4b	6.4b	Patch available	CNA

WHMCS Bridge VendorUnknown Affected 6.4b to before 6.4b Fixed in 6.4b Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:i-plugins:whmcs_bridge::::::wordpress::*	before 6.4b	Vulnerable	I-plugins

cpe:2.3:a:i-plugins:whmcs_bridge:*:*:*:*:*:wordpress:*:* Versions before 6.4b Vulnerable ·I-plugins

Remediation

Fix · CNA WHMCS Bridge (Unknown) Fixed in 6.4b

Timeline

2026-10-02 Threatist record created from CVE-2021-25112
2026-10-03 Alias added: GHSA-pv99-qp9p-g563

References

Exploit 1

https://wpscan.com/vulnerability/4aae2dd9-8d51-4633-91bc-ddb53ca3471c

Advisory 1

https://plugins.trac.wordpress.org/changeset/2659751

TI-2021-02958 WHMCS Bridge <= 6.1 Subscriber+ Stored Cross-Site Scripting CVSS 3.1MEDIUM 6.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences