CVE-2023-2121

Vault’s KV Diff Viewer Allowed for HTML Injection

Severity Score

5.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

NVD
RedHat

Vault and Vault Enterprise's (Vault) key-value v2 (kv-v2) diff viewer allowed HTML injection into the Vault web UI through key values. This vulnerability, CVE-2023-2121, is fixed in Vault 1.14.0, 1.13.3, 1.12.7, and 1.11.11.

A flaw was found in HashiCorp Vault and Vault Enterprise, where they are vulnerable to Cross-site scripting caused by improper validation of user-supplied input by the key-value v2 (kv-v2) diff viewer. A remote, authenticated attacker can inject malicious script into a Web page which would be executed in a victim's Web browser within the security context of the hosting Web site once the page is viewed. This flaw allows an attacker to steal the victim's cookie-based authentication credentials.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-04-17 CVE Reserved
2023-06-09 CVE Published
2025-01-06 CVE Updated
2025-04-15 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://discuss.hashicorp.com/t/hcsec-2023-17-vault-s-kv-diff-viewer-allowed-html-injection/54814	2023-06-16
https://access.redhat.com/security/cve/CVE-2023-2121	2023-11-08
https://bugzilla.redhat.com/show_bug.cgi?id=2214237	2023-11-08

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Hashicorp Search vendor "Hashicorp"		Vault Search vendor "Hashicorp" for product "Vault"				< 1.11.11 Search vendor "Hashicorp" for product "Vault" and version " < 1.11.11"		-		Affected
Hashicorp Search vendor "Hashicorp"		Vault Search vendor "Hashicorp" for product "Vault"				< 1.11.11 Search vendor "Hashicorp" for product "Vault" and version " < 1.11.11"		enterprise		Affected
Hashicorp Search vendor "Hashicorp"		Vault Search vendor "Hashicorp" for product "Vault"				>= 1.12.0 < 1.12.7 Search vendor "Hashicorp" for product "Vault" and version " >= 1.12.0 < 1.12.7"		-		Affected
Hashicorp Search vendor "Hashicorp"		Vault Search vendor "Hashicorp" for product "Vault"				>= 1.12.0 < 1.12.7 Search vendor "Hashicorp" for product "Vault" and version " >= 1.12.0 < 1.12.7"		enterprise		Affected
Hashicorp Search vendor "Hashicorp"		Vault Search vendor "Hashicorp" for product "Vault"				>= 1.13.0 < 1.13.3 Search vendor "Hashicorp" for product "Vault" and version " >= 1.13.0 < 1.13.3"		-		Affected
Hashicorp Search vendor "Hashicorp"		Vault Search vendor "Hashicorp" for product "Vault"				>= 1.13.0 < 1.13.3 Search vendor "Hashicorp" for product "Vault" and version " >= 1.13.0 < 1.13.3"		enterprise		Affected