CVE-2026-14819: unknown event tickets and registration Cross-site Scripting
Vulnerability summary
CVE-2026-14819 is a medium (CVSS 4.4) Cross-site Scripting vulnerability in unknown event tickets and registration. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.4% of scored vulnerabilities. 1 public exploit is recorded. Fixed in 5.28.4.
Timeline
- 28-07-2026PublishedVulnerability first disclosed.
- 28-07-2026Last modifiedVulnerability information updated.
Description
The Event Tickets and Registration WordPress plugin before 5.28.4 does not properly escape event titles before outputting them in a ticket history log, allowing users with the Editor role and above to perform Stored Cross-Site Scripting attacks that execute against higher-privileged users on multisite installations.
CVSS metrics
3 scores · 3 sources · 1 version- CVE.orgCNA3.5LowCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:NDiffers
- NVDNIST3.5LowCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:NDiffers
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
14%
Versus all other CVEs
30-day change
+0.10 pp
From 0.14% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (wpscan.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Unknown1 product
- event tickets and registration< 5.28.4
Wordpress1 product
- event-tickets≤ 5.28.3 (fixed in 5.28.4)
2 vendors · 2 products