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CVE-2021-25112

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

6.1 Medium

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

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

2.19%Up 1.3 points since Mar 1, 2022
90%50%10%1%

What each source reports

NVD Score used 6.1

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

Record
CVE-2021-25112
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness
CWE-79
Updated
2026-11-02
CVE List No score

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

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

Record
CVE-2021-25112
Weakness
CWE-79
Updated
2026-11-02
EUVDEUVD-2021-12024 No score

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

Record
EUVD-2021-12024
Updated
2026-11-03
GitHub AdvisoriesGHSA-pv99-qp9p-g563 6.1

The WHMCS Bridge WordPress plugin before 6.4b does not sanitise and escape the error parameter...

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

Record
GHSA-pv99-qp9p-g563
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
NucleiWordPress WHMCS Bridge <6.4b - Cross-Site Scripting

History

History
RecordedChangedSources
aliases, productsEUVD
first indexedCVE List, GitHub Advisories, Nuclei, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-25112 is a medium vulnerability (CVSS 6.1) in I-plugins Whmcs Bridge, published February 28, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.19%, the 82nd percentile. No source names a fixed version.

References

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