VULNERABILITY INTELLIGENCE
CVE-2021-42078
CVSS score6.1 MEDIUM
EPSS probability0.89%
CISA KEVNot currently listed
Published2021-11-08
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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.
Weakness classification
- nvd@nist.gov: CWE-79
Primary references
- cve@mitre.org — Exploit, Mailing List, Third Party Advisory
- cve@mitre.org — Exploit, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Mailing List, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory