CVE-2023-37978 MEDIUM

CVE-2023-37978: WordPress HTTP Headers Plugin <= 1.18.11 is vulnerable to Server Side Request Forgery (SSRF)

Vendor Dimitar Ivanov

Product HTTP Headers

Weakness CWE-918 · SSRF

Published November 13, 2023

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

4.4/10

Attack vector Network

Attack complexity High

Privileges required High

User interaction None

Confidentiality Low

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Server-Side Request Forgery (SSRF) vulnerability in Dimitar Ivanov HTTP Headers.This issue affects HTTP Headers: from n/a through 1.18.11.

Explanation of Vulnerability in Simple Terms

02Summary

HTTP Headers is a library that can be abused to make the site send requests to internal or external systems on an attacker's behalf. An authenticated administrator with high privileges can craft a request that causes the library to fetch a URL they specify, potentially accessing internal services or exfiltrating data. The impact is limited to low-level information disclosure and modification.

What an attacker can do

03Attacker Capabilities

Make the site send HTTP requests to internal or external systems the attacker specifies.

Potential impact on your site

04Site Impact

A compromised admin account could be used to probe internal networks or access restricted services via your site.

Conditions required to exploit

05Prerequisites

Attacker must have high-level administrator privileges; no user interaction required.

Key dates

06Disclosure timeline

November 13, 2023 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-37978 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/918.html AskarLabs — CWE-918 write-up Server-Side Request Forgery

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