CozyStay <= 1.7.0 and TinySalt <= 3.9.0 — Unauthenticated PHP Object Injection in ajax_handler
CVE-2024-13410Published · Updated Action summary
TinySalt - Personal Food Blog WordPress Theme: Affected: ≤3.9.0Update to 3.10.0 or newer
CozyStay - Hotel Booking WordPress Theme: Affected: ≤1.7.0Update to 1.7.1 or newer
All remediation stepsOn this page3
Overview
- Advisory ID
- CVE-2024-13410
- Product
- TinySalt - Personal Food Blog WordPress Theme tinysalt
- Affected
- TinySalt - Personal Food Blog WordPress Theme: ≤3.9.0
CozyStay - Hotel Booking WordPress Theme: ≤1.7.0 - Fixed in
- 3.10.0 · 1.7.1
- Weakness
- CWE-502 PHP Object Injection
- Required access
- No account needed
- Published
- · updated
- Credit
- Lucio Sá
- Source
- Wordfence Intelligence
- Affected≤ 3.9.0
- Patched in3.10.0
Update to 3.10.0 or newer.
- Affected≤ 1.7.0
- Patched in1.7.1
Update to 1.7.1 or newer.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
The CozyStay and TinySalt plugins for WordPress are vulnerable to PHP Object Injection in all versions up to, and including, 1.7.0, and in all versions up to, and including 3.9.0, respectively, via deserialization of untrusted input in the 'ajax_handler' function. This makes it possible for unauthenticated attackers to inject a PHP Object.
No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
Not sure which version you run? Run a passive check — it reads public files only.
Remediation & mitigations
- Update to version 3.10.0, or a newer patched version
- Update to version 1.7.1, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
References & provenance
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
- 8.1CVE-2025-49455Unauthenticated PHP Object Injection
- 8.1CVE-2025-49454Unauthenticated Local File Inclusion
Timeline
CVE published
Severity critical, CVSS 9.8
Record last updated
Sources & licenses
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.