Medium severity · published Jun 26, 2025
CVE-2025-5540
Event RSVP and Simple Event Management Plugin <= 4.1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting
5.4
CVSS
0.2%
EPSS
No
On KEV
Description
The Event RSVP and Simple Event Management Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'emd_mb_meta' shortcode in all versions up to, and including, 4.1.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ER
Event RSVP and Simple Event Management Plugin · emarket-design
through 4.1.0 · source: vendor
ER
Event Rsvp And Simple Event Management · Emarketdesign
through 4.1.0 · source: NVD
Affected product
ER
Event RSVP and Simple Event Management Plugin
emarket-design
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-5540
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-5540
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3324339%40wp-easy-events&new=3324339%40wp-easy-events&sfp_email=&sfph_mail=
Product
https://wordpress.org/plugins/wp-easy-events/
Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/f09ffc02-bfed-4aa3-a3d3-58e188b3e147?source=cve
More from Event RSVP and Simple Event Management Plugin
8.1
CVE-2025-8420
Multiple Plugins by emarket-design <= Multiple Versions - Unauthenticated Limited Remote Code Execution