CVE-2026-10551
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedThe Breeze Cache WordPress plugin before 2.5.6 is vulnerable to unauthenticated Stored Cross-Site Scripting (XSS) due to a predictable replacement hash used during the HTML minification process and abusing a regular expression. This allows an attacker to inject arbitrary HTML attributes in the final HTML output by anticipating the placeholder format.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThe Breeze Cache WordPress plugin before version 2.5.6 contains an unauthenticated stored XSS vulnerability. Attackers exploit a predictable replacement hash used during HTML minification by abusing a regular expression, allowing injection of arbitrary HTML attributes into the final HTML output by anticipating the placeholder format.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm Breeze Cache plugin is installedAccess WordPress admin dashboard and navigate to Plugins > Installed Plugins, or inspect the /wp-content/plugins/ directory for a 'breeze' folderAffected if The Breeze Cache plugin is not present on the WordPress installation
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Identify the installed Breeze Cache versionIn WordPress admin, view the plugin details from the Plugins list to see the version number, or check the main plugin file (e.g., breeze.php) for the 'Version' header commentAffected if The version number is lower than 2.5.6 (e.g., 2.5.5, 2.5.0, 1.x, etc.)
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Verify HTML minification is enabledNavigate to Breeze plugin settings in WordPress admin (Breeze > HTML Minify) or inspect the wp_options table for the option named 'breeze_minify_html' set to value '1'Affected if HTML minification is turned ON (the vulnerability only applies when minification is active)
You are affected if Breeze Cache plugin is installed with version 2.5.5 or earlier AND the HTML minification feature is enabled in the plugin settings.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedUpdate the Breeze Cache plugin to version 2.5.6 or later. If immediate update is not possible, consider disabling the HTML minification feature as a temporary workaround.
Breeze Cache version 2.5.6
- Upgrade the Breeze Cache WordPress plugin to version 2.5.6 or later
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-10551 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-10551 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data