CVE-2023-27616 HIGH

CVE-2023-27616: 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

7.1/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction Required

Confidentiality Low

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Unauth. 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 attackers to inject malicious scripts into the application. An attacker can craft a malicious link or page that, when visited by a user, executes arbitrary JavaScript in the victim's browser. This can lead to session hijacking, credential theft, or defacement. The vulnerability requires user interaction and affects the integrity and confidentiality of user data.

What an attacker can do

03Attacker Capabilities

Inject and execute malicious JavaScript in a user's browser to steal session data, credentials, or perform actions on their behalf.

Potential impact on your site

04Site Impact

Users visiting RSVPMaker pages can have their sessions hijacked or credentials stolen if they click attacker-controlled links.

Conditions required to exploit

05Prerequisites

Attacker must trick a user into visiting a malicious link or page (user interaction required). No authentication needed.

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-2023-27616 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html

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