CVE-2026-57770
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 · uneditedDeserialization of Untrusted Data vulnerability in ThemeGoods Grand Photography grandphotography allows Object Injection.This issue affects Grand Photography: from n/a through <= 5.7.8.
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 confidenceA PHP Object Injection vulnerability exists in the ThemeGoods Grand Photography theme due to unsafe deserialization of untrusted data. Attackers can exploit this to inject malicious PHP objects, potentially achieving remote code execution depending on available POP (Property Oriented Programming) chains in the application.
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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 Grand Photography theme is installedNavigate to WordPress admin dashboard > Appearance > Themes, or inspect the /wp-content/themes/ directory for a folder named 'grand-photography' or similar variant of 'grand-photography-theme'Affected if The Grand Photography theme by ThemeGoods is present in the WordPress installation
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Identify the installed theme versionCheck the theme's style.css file (usually in wp-content/themes/grand-photography/style.css) for the 'Version:' header, or look in the theme's main PHP file for a version constantAffected if The installed version cannot be determined or is not listed as patched by ThemeGoods
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Locate deserialization entry pointsSearch theme PHP files for calls to unserialize(), eval(), preg_replace() with /e modifier, or extract() on user-controlled input. Check AJAX handlers (wp-admin/admin-ajax.php) and front-end submission forms that the theme providesAffected if The theme contains unserialize() calls processing data from $_GET, $_POST, $_COOKIE, or HTTP request bodies without prior validation
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Check for exposed serialized data handlingReview theme shortcodes and AJAX endpoints for parameters that accept base64-encoded or serialized data. Test by submitting crafted serialized payloads to theme endpoints (if authorized in a test environment)Affected if Theme endpoints accept and unserialize() data from unauthenticated or authenticated user input
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Inspect for malicious PHP objects or backdoorsReview recently modified PHP files in the theme directory, check for eval() base64_decode() combinations, or unusual files created outside normal theme structureAffected if Suspicious code patterns found or unexpected files exist in the theme directory
You are affected if the ThemeGoods Grand Photography theme is installed and its version contains unsafe deserialization logic processing untrusted input without validation.
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.
From vendor dataUpdate Grand Photography theme to the latest patched version immediately. If no patch is available, disable the theme and replace with a maintained alternative, or implement input validation/sanitization at the deserialization entry points.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-57770 — 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-2026-57770 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
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