themefusion Avada Builder Plugin up to 3.15.2 on WordPress Dynamic Data Feature cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability was found in themefusion Avada Builder Plugin up to 3.15.2 on WordPress. It has been classified as problematic. Impacted is an unknown function of the component Dynamic Data Feature. The manipulation leads to cross site scripting. This vulnerability is referenced as CVE-2026-1543. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in themefusion Avada Builder Plugin up to 3.15.2 on WordPress. It has been rated as problematic. This issue affects an unknown code block of the component Dynamic Data Feature. The manipulation 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 summary by CVE is:

The Avada (Fusion) Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple shortcodes in all versions up to, and including, 3.15.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user (typically an administrator) accesses a page displaying dynamic user data (such as via the Dynamic Data feature pulling user biographical information).

The weakness was published by Craig Smith. The advisory is shared at wordfence.com. The identification of this vulnerability is CVE-2026-1543 since 01/28/2026. The exploitation is known to be easy. The attack may be initiated remotely. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Upgrading eliminates this vulnerability. The upgrade is hosted for download at avada.com.

The vulnerability is also documented in the vulnerability database at CNNVD (CNNVD-202605-4660). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.9

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.4
CNA Vector (Wordfence): 🔒

CVSSv2info

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

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: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: avada.com

Timelineinfo

01/28/2026 CVE reserved
05/21/2026 +112 days Advisory disclosed
05/21/2026 +0 days VulDB entry created
05/24/2026 +3 days VulDB entry last update

Sourcesinfo

Advisory: wordfence.com
Researcher: Craig Smith
Status: Confirmed

CVE: CVE-2026-1543 (🔒)
GCVE (CVE): GCVE-0-2026-1543
GCVE (VulDB): GCVE-100-364985
CNNVD: CNNVD-202605-4660 - WordPress plugin Avada (Fusion) Builder 跨站脚本漏洞

Entryinfo

Created: 05/21/2026 07:36
Updated: 05/24/2026 15:54
Changes: 05/21/2026 07:36 (67), 05/22/2026 21:03 (6), 05/24/2026 03:08 (1), 05/24/2026 15:54 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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