CVE-2021-25112Public exploitNetwork attack vector

Administrator script execution via unescaped error parameter

Published Feb 28, 2022 · Updated Aug 3, 2024

Reflected XSS in Global Programming WHMCS Bridge before 6.4b allows remote attackers to run script in an administrator's browser. The cc-ce-bridge-cp settings page inserts the error query parameter into admin-dashboard output without sanitizing or escaping it. Exploitation requires an administrator to open a crafted settings-page URL, allowing script execution in that administrator's WordPress session.

CVSS severity6.1
Medium
EPSS probability2.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Global Programming WHMCS Bridge before 6.4b allows remote attackers to run script in an administrator's browser. The cc-ce-bridge-cp settings page inserts the error query parameter into admin-dashboard output without sanitizing or escaping it. Exploitation requires an administrator to open a crafted settings-page URL, allowing script execution in that administrator's WordPress session.

The record

CVE
CVE-2021-25112
Published
Feb 28, 2022
Updated
Aug 3, 2024
Vendor
Global Programming
Product
WHMCS Bridge
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 28, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.4b <6.4b

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Global Programming · WHMCS Bridgeversion=6.4b <6.4b

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001User Execution: Malicious Link

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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