The Events Calendar <= 6.17.4 - Unauthenticated PHP Object Injection to Remote Code Execution
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| stellarwp | The Events Calendar | unaffected |
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| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Stellarwp | The Events Calendar |
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| Wordpress | Wordpress |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: 1.5% (1.470% probability within 30 days)
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| Metrics |
ssvc
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| First Time appeared |
Stellarwp
Stellarwp the Events Calendar Wordpress Wordpress wordpress |
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| Vendors & Products |
Stellarwp
Stellarwp the Events Calendar Wordpress Wordpress wordpress |
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| Description | The The Events Calendar plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 6.17.4 via the is_safe_widget_instance function. This is due to insufficient protection in is_safe_widget_instance, which can be bypassed because PHP fires magic methods during its pre-parse, combined with enable_rendering_widget_copied() forging a valid wp_hash integrity attribute before unserialize() is reached. This makes it possible for unauthenticated attackers to execute code on the server. This is exploitable without authentication or approval because the plugin's V2 single-event template runs do_blocks() over buffered comment HTML, and WordPress returns a moderation-hash URL that allows an unauthenticated commenter to immediately view their own pending comment, delivering the injected block markup to the vulnerable code path before any moderation occurs. This does require comments to be enabled and visible on events. | |
| Title | The Events Calendar <= 6.17.4 - Unauthenticated PHP Object Injection to Remote Code Execution | |
| Weaknesses | CWE-502 | |
| References |
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| Metrics |
cvssV3_1
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