My Calendar <= 3.7.9 - Authenticated (Custom+) Missing Authorization to Unauthorized Event Publication via 'event_approved' Parameter
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
The My Calendar – Accessible Event Manager plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.7.9. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with custom-level access and above, to bypass the moderation and approval workflow by tampering with the POST body to publish events or set other unauthorized statuses such as cancelled or private, in ways their role does not permit. While the UI correctly restricts low-privilege users to a draft-only submit button, this restriction is enforced only client-side, making it trivially bypassable by directly manipulating the POST request.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- joedolson My Calendar – Accessible Event Manager
through 3.7.9
References 12
plugins.trac.wordpress.org
- browser/my-calendar/trunk/my-calendar-event-editor.php#L2384
- browser/my-calendar/tags/3.7.9/my-calendar-event-editor.php#L2384
- browser/my-calendar/trunk/my-calendar-event-editor.php#L406
- browser/my-calendar/tags/3.7.9/my-calendar-event-editor.php#L406
- browser/my-calendar/trunk/my-calendar-event-editor.php#L601
- browser/my-calendar/tags/3.7.9/my-calendar-event-editor.php#L601
- browser/my-calendar/tags/3.7.4/my-calendar-event-editor.php#L2384
- browser/my-calendar/tags/3.7.4/my-calendar-event-editor.php#L406
- browser/my-calendar/tags/3.7.4/my-calendar-event-editor.php#L601
- changeset?sfp_email=&sfph_mail=&reponame=&old=3527861%40my-calendar&new=3527861%40my-calendar&sfp_email=&sfph_mail=