greenpau caddy-security HTTP Header X-Forwarded-Host server-side request forgery

CVSS Meta Temp Score
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Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in greenpau caddy-security. Affected by this vulnerability is an unknown functionality of the component HTTP Header Handler. The manipulation of the argument X-Forwarded-Host leads to server-side request forgery. This vulnerability is referenced as CVE-2024-21498. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in greenpau caddy-security (affected version unknown). This issue affects an unknown functionality of the component HTTP Header Handler. The manipulation of the argument X-Forwarded-Host with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

All versions of the package github.com/greenpau/caddy-security are vulnerable to Server-side Request Forgery (SSRF) via X-Forwarded-Host header manipulation. An attacker can expose sensitive information, interact with internal services, or exploit other vulnerabilities within the network by exploiting this vulnerability.

The weakness was published 02/17/2024 as 269. The advisory is shared at github.com. The identification of this vulnerability is CVE-2024-21498 since 12/22/2023. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/23/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector (Snyk): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Server-side request forgery
CWE: CWE-918
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/22/2023 🔍
02/17/2024 +57 days 🔍
02/17/2024 +0 days 🔍
12/23/2025 +675 days 🔍

Sourcesinfo

Product: github.com

Advisory: 269
Status: Confirmed

CVE: CVE-2024-21498 (🔍)
GCVE (CVE): GCVE-0-2024-21498
GCVE (VulDB): GCVE-100-254045

Entryinfo

Created: 02/17/2024 06:46
Updated: 12/23/2025 23:08
Changes: 02/17/2024 06:46 (49), 12/23/2025 23:08 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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