Deserialization of Untrusted DataWeakness · CWE-502

CVE-2025-52826

HIGH · 8.8 CVSS v3.1 Published 2025-06-27
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
94/100
Remediation priority · Urgent
Remotely reachable Zero-click

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 · unedited
Deserialization of Untrusted Data vulnerability in uxper Sala allows Object Injection. This issue affects Sala: from n/a through 1.1.3.

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 · moderate confidence

A deserialization vulnerability in uxper Sala allows attackers to inject arbitrary PHP objects by supplying malicious serialized data. This object injection can potentially lead to remote code execution if exploitable gadget chains exist in the application or its dependencies.

MitigationReplace unsafe PHP unserialize() calls with JSON-based deserialization or implement a strict allowed_classes whitelist; validate and sanitize all user-supplied data before deserialization.

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify uxper Sala installation
    Search for the uxper Sala application in the system using file system queries or package managers (e.g., 'find / -name '*sala*' 2>/dev/null', 'dpkg -l | grep sala', or 'rpm -qa | grep sala')
    Affected if The application is present on the system and is using deserialization functionality without validation
  2. Determine installed version
    Locate version information from application metadata, configuration files, or executable version strings (e.g., check installation directories, README files, or run 'sala --version' if available)
    Affected if The installed version falls within any affected version range (compare to vendor release notes for CVE-2025-52826)
  3. Inspect application deserialization code
    Search source code or binary for deserialization methods such as PHP unserialize(), Python pickle.load(), Java ObjectInputStream, or similar language-specific deserialization functions
    Affected if The application deserializes data from untrusted sources without validation or class whitelisting
  4. Review serialized data handling configurations
    Examine configuration files, API endpoints, or data import features that accept serialized input (look for settings related to data import, backup restore, or API data processing)
    Affected if The application accepts serialized data from user input, external files, or network sources without cryptographic integrity checks
  5. Check for secure deserialization alternatives
    Verify whether the application uses safer data formats like JSON, XML with schema validation, or signed/encrypted serialized payloads
    Affected if The application relies on unsafe native serialization (pickle, PHP serialize, Java serialization) without additional protections

A user is affected if uxper Sala is installed and processes untrusted serialized data without proper validation, class whitelisting, or integrity verification.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Replace unsafe PHP unserialize() calls with JSON-based deserialization or implement a strict allowed_classes whitelist; validate and sanitize all user-supplied data before deserialization.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA2.0 h
15.0 hours of engineering $2,640
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,224.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2025-52826 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-52826 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • 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