CVE-2025-9075Network attack vector

Stored XSS via unescaped Gutenberg block attributes

Published Oct 1, 2025 · Updated Apr 8, 2026

Stored XSS in BdThemes ZoloBlocks 2.3.10 and earlier allows remote authenticated users to inject scripts through Gutenberg block attributes. Multiple block renderers place insufficiently sanitized attributes, including map markers, captions, gallery data, progress labels, and text-path URLs, into page output without adequate escaping. Contributor-level access is required to save the payload; the script then runs in the browser of anyone who opens the affected page, enabling actions or data access within that visitor's session.

CVSS severity6.4
Medium
EPSS probability0.25%
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 BdThemes ZoloBlocks 2.3.10 and earlier allows remote authenticated users to inject scripts through Gutenberg block attributes. Multiple block renderers place insufficiently sanitized attributes, including map markers, captions, gallery data, progress labels, and text-path URLs, into page output without adequate escaping. Contributor-level access is required to save the payload; the script then runs in the browser of anyone who opens the affected page, enabling actions or data access within that visitor's session.

The record

CVE
CVE-2025-9075
Published
Oct 1, 2025
Updated
Apr 8, 2026
Vendor
BdThemes
Product
ZoloBlocks
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record 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 <=2.3.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

BdThemes · ZoloBlocksversion=0 <=2.3.10

Published CVSS scores

6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

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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