CVE-2023-27617 MEDIUM

CVE-2023-27617: WordPress RSVPMarker Plugin <= 10.6.6 is vulnerable to Cross Site Scripting (XSS)

Vendor David F. Carr

Product RSVPMaker

Weakness CWE-79 · XSS

Published September 27, 2023

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

5.9/10

Attack vector Network

Attack complexity Low

Privileges required High

User interaction Required

Confidentiality Low

Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L

What the vulnerability does

01Description

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in David F. Carr RSVPMaker plugin <= 10.6.6 versions.

Explanation of Vulnerability in Simple Terms

02Summary

RSVPMaker versions up to 10.6.6 contain a cross-site scripting (XSS) vulnerability that allows authenticated administrators to inject malicious scripts. The vulnerability requires user interaction—typically clicking a crafted link—and can affect other users viewing the site. Impact is limited to low-level data exposure and site defacement.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that execute in other users' browsers when they view affected pages.

Potential impact on your site

04Site Impact

A malicious admin could deface pages or steal session data from other users viewing the site.

Conditions required to exploit

05Prerequisites

Attacker must have high-level admin privileges and the victim must click a malicious link or visit a crafted page.

Key dates

06Disclosure timeline

September 27, 2023 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-27617 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

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