Reported vulnerability

CozyStay <= 1.7.0 and TinySalt <= 3.9.0 - Unauthenticated PHP Object Injection in ajax_handler

Q: How do I check which product and version this report affects?

This report covers more than one product. Choose your plugin, theme or WordPress core in the version checker, then enter its installed version. Each product has its own affected ranges and fix details in the report above.

Q: Which update should I install?

Find your exact product in the report and read its fixed versions and recommended action. Fix details for one product do not apply to every product covered by this advisory. Follow the linked source when no fixed version is specified.

Q: Does an affected version mean my website has been hacked?

An affected version means the installed release matches a vulnerability described in this report. It does not show whether anyone has exploited it on your website. The checker compares version numbers with stored reports; it does not inspect your website.

Q: Does a version outside these ranges mean my website is secure?

A version outside the reported ranges is not listed as affected by this particular issue. Other vulnerabilities, missing information or a previous compromise still need separate checks. Review other reports for your product and keep your website maintained.

Published 18 Mar 2025

Updated 19 Mar 2025

CVE-2024-13410

Compare your installed software with the affected versions below. Follow the source’s remediation guidance and test an available update after taking a backup. A database entry describes a reported issue; it does not establish whether a particular website has been compromised.

Does this affect my version?

Check your installed version against this advisory. This compares the report’s version ranges and does not scan your website.

Wordfence advisory

critical · CVSS 9.8

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.

Severity vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

TinySalt - Personal Food Blog WordPress Theme

Software: theme · tinysalt
Affected versions: Start version unspecified, through 3.9.0
Fix availability: Fix available
Fixed versions: 3.10.0

Recommended action

Update to version 3.10.0, or a newer patched version

CozyStay - Hotel Booking WordPress Theme

Software: theme · cozystay
Affected versions: Start version unspecified, through 1.7.0
Fix availability: Fix available
Fixed versions: 1.7.1

Recommended action

Update to version 1.7.1, or a newer patched version

Further references (1)

wordfence.com/threat-intel/vulnerabilities/id/61080df6-836f-4365-964a-fa2517e8be5a?source=api-prod

Data sources and licences

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Read licence terms

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Read licence terms

Source: Wordfence

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Questions about this vulnerability

How do I check which product and version this report affects?

This report covers more than one product. Choose your plugin, theme or WordPress core in the version checker, then enter its installed version. Each product has its own affected ranges and fix details in the report above.

Which update should I install?

Find your exact product in the report and read its fixed versions and recommended action. Fix details for one product do not apply to every product covered by this advisory. Follow the linked source when no fixed version is specified.

Does an affected version mean my website has been hacked?

An affected version means the installed release matches a vulnerability described in this report. It does not show whether anyone has exploited it on your website. The checker compares version numbers with stored reports; it does not inspect your website.

Does a version outside these ranges mean my website is secure?

A version outside the reported ranges is not listed as affected by this particular issue. Other vulnerabilities, missing information or a previous compromise still need separate checks. Review other reports for your product and keep your website maintained.

These reports cover at least one of the same plugins, themes or WordPress core. Check each report’s affected versions separately.

Back to vulnerability database

CozyStay <= 1.7.0 and TinySalt <= 3.9.0 - Unauthenticated PHP Object Injection in ajax_handler

Does this affect my version?

Wordfence advisory

TinySalt - Personal Food Blog WordPress Theme

Recommended action

CozyStay - Hotel Booking WordPress Theme

Recommended action

Need help fixing this issue?

Questions about this vulnerability

Other reports for the same product