The Yet Another Stars Rating plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 1.8.6 via deserialization of untrusted input from the unserialize() function found in the yasr-shortcode-functions.php file. This allows unauthenticated attackers to inject a PHP Object. The additional presence of a POP chain allows attackers to remotely execute arbitrary code.
This vulnerability is a critical severity with CVSS 9.8 Vulnerability issue affecting the Plugin YASR – Yet Another Star Rating Plugin for WordPress. It affects Versions up to 1.8.6 and is fixed in 1.8.7.
the tracked vulnerability is tracked for the Plugin YASR – Yet Another Star Rating Plugin for WordPress as critical severity with CVSS 9.8. The affected range is Versions up to 1.8.6. Update YASR – Yet Another Star Rating Plugin for WordPress to 1.8.7 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
yet-another-stars-rating
View on wordpress.org
|
| CVE | No linked CVE entry. |
| Patched Versions |
1.8.7
|
| Affected Versions |
Versions up to 1.8.6
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Yasr – Yet Another Stars Rating < 0.9.1 - Authenticated SQL Injection
Yet Another Stars Rating <= 3.1.2 - Authenticated (Subscriber+) Cross-Site Scripting via Shortcodes
Freemius SDK <= 2.4.2 - Missing Authorization Checks
Freemius <= 2.10.1 - Reflected DOM-Based Cross-Site Scripting via url Parameter
Freemius SDK <= 2.5.9 - Reflected Cross-Site Scripting via fs_request_get
Yet Another Stars Rating <= 3.4.3 - Missing Authorization via init
Yet Another Stars Rating <= 3.3.8 - Missing Authorization to Vote Tampering
Yasr – Yet Another Stars Rating <= 2.9.9 - Cross-Site Scripting via source
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