Event Tickets < 5.28.4 - Editor+ Stored XSS via Ticket Move
Priority MEDIUM 50CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00242 15th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Event Tickets and Registration (Unknown): 5.28.4
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Event Tickets and Registration | before 5.28.4 | 5.28.4 | Patch available | CNA |
- Event Tickets and Registration VendorUnknown Affected before 5.28.4 Fixed in 5.28.4 Patch available CNA
Remediation
- Fix · CNA Event Tickets and Registration (Unknown) Fixed in 5.28.4
Timeline
- 2026-10-02 Threatist record created from CVE-2026-14819
- 2026-10-03 Alias added: GHSA-c5f6-6q68-hmm6
References
Sources
- CVE-2026-14819 · CVE Program
- CVE-2026-14819 · NVD
- FIRST EPSS
- GHSA-c5f6-6q68-hmm6 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences