CVE-2026-10551Public exploitNetwork attack vector

Stored XSS via predictable minifier placeholders

Published Jul 13, 2026 · Updated Jul 13, 2026

Stored XSS in Cloudways Breeze before 2.5.6 allows remote attackers to inject HTML attributes through public WordPress comments. The HTML minifier uses SHA-512 hashes of the current time in protected-content placeholders, and its regular-expression replacement accepts attacker-predicted placeholder text from a comment. Exploitation requires HTML minification, which is disabled by default, plus open comments and approval or disabled moderation; viewing the resulting post executes injected script in the visitor's browser.

CVSS severity6.1
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 Cloudways Breeze before 2.5.6 allows remote attackers to inject HTML attributes through public WordPress comments. The HTML minifier uses SHA-512 hashes of the current time in protected-content placeholders, and its regular-expression replacement accepts attacker-predicted placeholder text from a comment. Exploitation requires HTML minification, which is disabled by default, plus open comments and approval or disabled moderation; viewing the resulting post executes injected script in the visitor's browser.

The record

CVE
CVE-2026-10551
Published
Jul 13, 2026
Updated
Jul 13, 2026
Vendor
Cloudways
Product
Breeze
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 13, 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 <2.5.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Cloudways · Breezeversion=0 <2.5.6

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.

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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')
T1059.007JavaScript/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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