CVE-2023-4423 json
WP Event Manager – Events Calendar, Registrations, Sell Tickets with WooCommerce <= 3.1.37.1 - Authenticated (Admin+) Stored Cross-Site Scripting
published 2023-09-27 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-54285
- cvss
- 4.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
Summary
The WP Event Manager – Events Calendar, Registrations, Sell Tickets with WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in versions up to, and including, 3.1.37.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Patch / fix
- wp-eventmanager wp_event_manager 3.1.38
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 21 mo ago
Exploit prediction
0.60% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/wpeventmanager/wp-event-manager/issues/1483 referenced PoC, tagged "exploit" by a source, unverified
- github.com https://github.com/Jacky-Y/vuls/blob/main/vul5.md referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.4 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N |
| NVD | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
Affected products
- wpeventmanager WP Event Manager – Events Calendar, Registrations, Sell Tickets with WooCommerce
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
plugins.trac.wordpress.org
/changeset?sfp_email=&sfph_mail=&reponame=&new=2969034%40wp-event-manager%2Ftrunk&old=2953169%40wp-event-manag
patch
-
github.com
/wpeventmanager/wp-event-manager/issues/1483
exploit, issue-tracking, patch, vendor-advisory
-
github.com
/Jacky-Y/vuls/blob/main/vul5.md
exploit, third-party-advisory
-
wordfence.com
/threat-intel/vulnerabilities/id/dd9d22b0-a84a-4bf2-b8b4-89bae2970f29?source=cve
third-party-advisory
Sources
- CVE List CVE-2023-4423
- NVD CVE-2023-4423
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.