CVE-2023-37874 MEDIUM

CVE-2023-37874: WordPress HTTP Headers Plugin <= 1.18.11 is vulnerable to Cross Site Scripting (XSS)

Vendor Dimitar Ivanov

Product HTTP Headers

Weakness CWE-79 · XSS

Published August 5, 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 Dimitar Ivanov HTTP Headers plugin <= 1.18.11 versions.

Explanation of Vulnerability in Simple Terms

02Summary

HTTP Headers versions up to 1.18.11 contain a cross-site scripting (XSS) vulnerability in how they process and output header values. An authenticated user with high privileges can inject malicious scripts that execute in the browsers of other users who view affected pages. The vulnerability requires user interaction and affects the integrity and confidentiality of site data.

What an attacker can do

03Attacker Capabilities

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

Potential impact on your site

04Site Impact

Authenticated admins can inject scripts affecting other users' sessions, potentially compromising site security and user data.

Conditions required to exploit

05Prerequisites

Attacker must have high-level admin privileges and the victim must visit a page containing the injected payload.

Key dates

06Disclosure timeline

August 5, 2023 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-37874 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

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