Medium severity6.1NVD Advisory· Published Nov 8, 2021· Updated Jun 17, 2026
CVE-2021-42078
CVE-2021-42078
Description
PHP Event Calendar through 2021-11-04 allows persistent cross-site scripting (XSS), as demonstrated by the /server/ajax/events_manager.php title parameter. This can be exploited by an adversary in multiple ways, e.g., to perform actions on the page in the context of other users, or to deface the site.
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Affected products
2- PHP/Event Calendardescription
- Range: <=2021-11-04
Patches
Vulnerability mechanics
References
2- seclists.org/fulldisclosure/2021/Nov/24nvdExploitMailing ListThird Party Advisory
- www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2021-049.txtnvdExploitThird Party Advisory
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