CVE-2026-3534

Published: Mar 11, 2026 Last Modified: Mar 11, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,4
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: changed
Confidentiality: low
Integrity: low
Availability: none

Description

AI Translation Available

The Astra theme for WordPress is vulnerable to Stored Cross-Site Scripting via the `ast-page-background-meta` and `ast-content-background-meta` post meta fields in all versions up to, and including, 4.12.3. This is due to insufficient input sanitization on meta registration and missing output escaping in the `astra_get_responsive_background_obj()` function for four CSS-context sub-properties (`background-color`, `background-image`, `overlay-color`, `overlay-gradient`). This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0004
Percentile
0,1th
Updated

EPSS Score Trend (Last 7 Days)

79

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

Stable
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control Confidentiality Integrity Availability
Potential Impacts:
Bypass Protection Mechanism Read Application Data Execute Unauthorized Code Or Commands
Applicable Platforms
Technologies: AI/ML, Web Based, Web Server
Likelihood of Exploit: High
View CWE Details
https://themes.trac.wordpress.org/browser/astra/4.12.3/inc/…
https://themes.trac.wordpress.org/browser/astra/4.12.3/inc/core/common-function…
https://themes.trac.wordpress.org/browser/astra/4.12.3/inc/…
https://themes.trac.wordpress.org/browser/astra/4.12.3/inc/core/common-function…
https://themes.trac.wordpress.org/browser/astra/4.12.3/inc/…
https://themes.trac.wordpress.org/browser/astra/4.12.3/inc/metabox/class-astra-…
https://themes.trac.wordpress.org/browser/astra/4.12.3/inc/…
https://themes.trac.wordpress.org/browser/astra/4.12.3/inc/metabox/class-astra-…
https://themes.trac.wordpress.org/changeset?sfp_email=&sfph…
https://themes.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new…
https://www.wordfence.com/threat-intel/vulnerabilities/id/a…
https://www.wordfence.com/threat-intel/vulnerabilities/id/acf2906b-1ee5-4272-bf…