PatchTheCVECVE-2017-18563: The rsvp plugin before 2.3.8 for WordPress has persistent XSS via the note field on the attendee-list screen.
CVE-2017-18563 is a medium-severity flaw (CVSS 6.1) affecting rsvp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The rsvp plugin before 2.3.8 for WordPress has persistent XSS via the note field on the attendee-list screen.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.1 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 0.9% (top 40%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2019-08-21 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2017-18563?
rsvp: upgrade to 2.3.8. Exact commands for each OS are on this page.
Is CVE-2017-18563 being exploited?
CVE-2017-18563 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2017-18563 affect?
CVE-2017-18563 affects rsvp. Severity is medium (CVSS 6.1). The rsvp plugin before 2.3.8 for WordPress has persistent XSS via the note field on the attendee-list screen.
How urgent is CVE-2017-18563?
Priority 36/100. No elevated risk signals yet.