My Calendar: Unauthenticated Information Disclosure (IDOR) via Multisite switch_to_blog
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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| joedolson | my-calendar | affected |
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| Vendor | Product | Versions | ||||||||
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| Joedolson | My-calendar |
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| Wordpress | Wordpress |
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-2mvx-f5qm-v2ch | Unauthenticated Information Disclosure (IDOR) via Multisite switch_to_blog in My Calendar |
No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.932% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Joedolson
Joedolson my-calendar Wordpress Wordpress wordpress |
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| Vendors & Products |
Joedolson
Joedolson my-calendar Wordpress Wordpress wordpress |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | My Calendar is a WordPress plugin for managing calendar events. In versions 3.7.6 and below, the mc_ajax_mcjs_action AJAX endpoint, registered for unauthenticated users, passes user-supplied arguments through parse_str() without validation, allowing injection of arbitrary parameters including a site value. On WordPress Multisite installations, this enables an unauthenticated attacker to call switch_to_blog() with an arbitrary site ID and extract calendar events from any sub-site on the network, including private or hidden events. On standard Single Site installations, switch_to_blog() does not exist, causing an uncaught PHP fatal error and crashing the worker thread, creating an unauthenticated denial of service vector. This issue has been fixed in version 3.7.7. | |
| Title | My Calendar: Unauthenticated Information Disclosure (IDOR) via Multisite switch_to_blog | |
| Weaknesses | CWE-639 | |
| References |
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| Metrics |
cvssV4_0
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