CVE-2025-9512Public exploitNetwork attack vector

Unauthenticated script execution via malformed comment attributes

Published Oct 1, 2025 · Updated Oct 1, 2025

Stored XSS in comment rendering in Backup For WP Schema & Structured Data for WP & AMP before 1.50 allows remote attackers to execute scripts. The plugin modifies HTML tag attributes in approved comments without safely sanitizing and escaping quote-delimited attribute text, allowing a crafted link to add an event handler. No account is needed, but the comment must be approved and a visitor must load the affected page; the script then executes in that visitor's browser.

CVSS severity6.1
Medium
EPSS probability0.21%
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 comment rendering in Backup For WP Schema & Structured Data for WP & AMP before 1.50 allows remote attackers to execute scripts. The plugin modifies HTML tag attributes in approved comments without safely sanitizing and escaping quote-delimited attribute text, allowing a crafted link to add an event handler. No account is needed, but the comment must be approved and a visitor must load the affected page; the script then executes in that visitor's browser.

The record

CVE
CVE-2025-9512
Published
Oct 1, 2025
Updated
Oct 1, 2025
Vendor
Backup For WP
Product
Schema & Structured Data for WP & AMP
Classifications
CWE-79, CAPEC-592, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 1, 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=0 <1.50

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Backup For WP · Schema & Structured Data for WP & AMPversion=0 <1.50

Published CVSS scores

6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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-79Cross-Site Scripting (XSS)
CAPEC-592Stored XSS
T1059.007Command and Scripting Interpreter: JavaScript/JScript

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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