CVE-2025-30900Network attack vector

Contributor-level stored XSS via undisclosed input handling

Published Mar 27, 2025 · Updated May 10, 2025

Stored XSS in the Zoho Billing – Embed Payment Form plugin 4.0 and earlier allows remote authenticated users to inject scripts into WordPress pages. Patchstack identifies contributor-level access but does not disclose the affected parameter, function, or incorrect input-handling operation. A contributor must store crafted content and another user must open the affected page, where the script executes in that user's browser.

CVSS severity6.5
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in the Zoho Billing – Embed Payment Form plugin 4.0 and earlier allows remote authenticated users to inject scripts into WordPress pages. Patchstack identifies contributor-level access but does not disclose the affected parameter, function, or incorrect input-handling operation. A contributor must store crafted content and another user must open the affected page, where the script executes in that user's browser.

The record

CVE
CVE-2025-30900
Published
Mar 27, 2025
Updated
May 10, 2025
Vendor
Zoho Corporation
Product
Zoho Billing
Classifications
CWE-79, CAPEC-592, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 27, 2025CVE publishedPublication date reported by the CVE source.
  2. May 10, 2025Record 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=n/a <=4.0 changes=[{"at":"4.1","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Zoho Corporation · Zoho Billingversion=n/a <=4.0 changes=[{"at":"4.1","status":"unaffected"}]

Published CVSS scores

6.5PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-592Stored XSS
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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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