VDB-189596 · CVE-2021-24964 · GCVE-0-2021-24964

LiteSpeed Cache Plugin up to 4.4.3 on WordPress HTTP Header X-Forwarded-For cross site scripting

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	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.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in LiteSpeed Cache Plugin up to 4.4.3 on WordPress. Affected by this vulnerability is an unknown functionality of the component HTTP Header Handler. Such manipulation of the argument X-Forwarded-For leads to cross site scripting. This vulnerability is documented as CVE-2021-24964. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in LiteSpeed Cache Plugin up to 4.4.3 on WordPress (WordPress Plugin). Affected by this issue is an unknown functionality of the component HTTP Header Handler. The manipulation of the argument X-Forwarded-For with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity.

The weakness was released 01/03/2022. The advisory is shared for download at wpscan.com. This vulnerability is handled as CVE-2021-24964 since 01/14/2021. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 4.4.4 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

WordPress Plugin

Name

LiteSpeed Cache Plugin

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: LiteSpeed Cache Plugin 4.4.4

Timelineinfo

01/14/2021 🔍
01/03/2022 +354 days 🔍
01/03/2022 +0 days 🔍
05/22/2025 +1235 days 🔍

Sourcesinfo

Advisory: wpscan.com
Status: Confirmed

CVE: CVE-2021-24964 (🔍)
GCVE (CVE): GCVE-0-2021-24964
GCVE (VulDB): GCVE-100-189596

Entryinfo

Created: 01/03/2022 17:44
Updated: 05/22/2025 22:09
Changes: 01/03/2022 17:44 (41), 01/06/2022 08:11 (1), 05/22/2025 22:09 (33)
Complete: 🔍
Cache ID: 216::103