CVE-2026-39539: Edge-Themes Alloggio PHP Object Injection

CVE-2026-39539 · Severity: high · CVSS 8.1 · Published 2026-06-17

Alloggio is a WordPress theme used by hotels and hospitality businesses to manage bookings and reservations. A security flaw allows unauthenticated attackers to inject malicious data into the system, which could lead to full website takeover, data theft, or service disruption. This vulnerability is particularly dangerous because it does not require a login to exploit.

Vendors: Edge-Themes.

Quick answers

Is CVE-2026-39539 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-39539 being exploited in the wild.
How severe is CVE-2026-39539?
High severity, with a CVSS score of 8.1, published 17 June 2026.
Which products and versions are affected?
Edge-Themes Alloggio <= 2.1.2.
Is there a fix for CVE-2026-39539?
A patch was published on 2026-04-08: Version 2.1.3 released to address the issue Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-39539 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-39539?
Check whether you run Edge-Themes Alloggio at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The Alloggio - Hotel Booking theme for WordPress is vulnerable to PHP Object Injection in versions up to and including 2.1.2. This issue stems from the deserialization of untrusted data (CWE-502) provided by a user without proper validation. An unauthenticated remote attacker can exploit this by submitting specially crafted input to a vulnerable component. If a suitable Property-Oriented Programming (POP) chain is present on the server, the attacker could achieve remote code execution, perform SQL injection, or conduct path traversal. The vulnerability is resolved in version 2.1.3.

Affected products

  • Edge-Themes Alloggio - Hotel Booking <= 2.1.2

Timeline

  • 2026-02-11: other: Vulnerability reported by Denver Jackson
  • 2026-04-08: advisory: Patchstack published advisory
  • 2026-06-17: disclosed: CVE published to NVD
  • 2026-04-08: patched: Version 2.1.3 released to address the issue

References

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